Bicycling - Shimano Road Bike Parts Compatibility

Shimano Reference Contents

• Shimano Compatibility Charts
• Cycling Components Store
• Notes on Compatibility of Components
• Guide to Finding IDs of your components
• Compatibility Tables (with derailer capacity, etc.)
• Chainring Reference Table
• Celebrazio Compatibility Magic App is live, in Beta, on your Android Play store: Get the App.
  

Chart Magic - find compatible parts

This is Chart Magic version T as in "Tourmalet". About the magic - see this page for more about this tool. Updated for 2008 - 2020 products.

Step One: To find compatible parts, first select the part you have from the list here. Use the filters below to shorten the list for easier picking.

Shimano BB4600 Bottom Bracket Shimano BB5700 105 10-speed Bottom Bracket Shimano BB6700 Ultegra 10-speed Bottom Bracket BB7141B (equiv:) Shimano BB7241B Bottom Bracket Shimano BB7241B Bottom Bracket Shimano BB7900 Dura Ace 10-speed Bottom Bracket Shimano BB9000 Dura Ace Double 11-speed Bottom Bracket Shimano BB9241B Bottom Bracket Shimano BBR60 Ultegra 11-speed Double Bottom Bracket Shimano BBR9100 Dura Ace 11-speed Bottom Bracket Shimano BBRS500 Bottom Bracket Shimano BBRS500PB Bottom Bracket Shimano BR4600 Brake Caliper Shimano BR4700 Brake Caliper Shimano BR4770 - Hydraulic Disc - Brake Caliper Shimano BR5600 105 10-speed Brake Caliper Shimano BR5700 105 10-speed Brake Caliper Shimano BR5710 105 Brake Caliper BR5800 (equiv:) Shimano BR5810 105 Brake Caliper Shimano BR5810 105 Brake Caliper Shimano BR6600 Ultegra Brake Caliper Shimano BR6700 Ultegra Brake Caliper BR6800 (equiv:) Shimano BR6810 Ultegra Brake Caliper Shimano BR6810 Ultegra Brake Caliper Shimano BR7800 Dura Ace Brake Caliper Shimano BR7900 Dura Ace Brake Caliper BR9000 (equiv:) Shimano BR9010 Dura Ace Brake Caliper Shimano BR9010 Dura Ace Brake Caliper Shimano BRCX77 - Mechanical Disc - Brake Caliper Shimano BRR317 - Mechanical Disc - Brake Caliper Shimano BRR517 - Mechanical Disc - Brake Caliper Shimano BRR7000 105 Brake Caliper Shimano BRR7070 105 - Hydraulic Disc - Brake Caliper Shimano BRR785 - Hydraulic Disc - Brake Caliper Shimano BRR8000 Ultegra Brake Caliper Shimano BRR8010 Ultegra Brake Caliper Shimano BRR8070 Ultegra - Hydraulic Disc - Brake Caliper Shimano BRR9100 Dura Ace 11-speed Brake Caliper Shimano BRR9110 Dura Ace 11-speed Brake Caliper Shimano BRR9170 Dura Ace 11-speed - Hydraulic Disc - Brake Caliper Shimano BRRS305 - Mechanical Disc - Brake Caliper Shimano BRRS405 - Hydraulic Disc - Brake Caliper Shimano BRRS505 - Hydraulic Disc - Brake Caliper Shimano BRRS785 - Hydraulic Disc - Brake Caliper Shimano BRRS805 - Hydraulic Disc - Brake Caliper Shimano BRRX400 GRX Gravel Adventure - Hydraulic Disc - Brake Caliper Shimano BRRX810 GRX Gravel Adventure - Hydraulic Disc - Brake Caliper Shimano CN4601 Tiagra 10-speed Chain Shimano CN5600 105 10-speed Chain CN5700 (equiv:) Shimano CN5701 105 10-speed Chain Shimano CN5701 105 10-speed Chain Shimano CN6600 Ultegra 10-speed Chain CN6700 (equiv:) Shimano CN6701 Ultegra 10-speed Chain Shimano CN6701 Ultegra 10-speed Chain Shimano CN6800 Ultegra 11-speed Chain Shimano CN7801 Dura Ace 10-speed Chain CN7900 (equiv:) Shimano CN7901 Dura Ace 10-speed Chain Shimano CN7901 Dura Ace 10-speed Chain Shimano CN9000 Dura Ace 11-speed Chain Shimano CNHG54 10-speed Chain Shimano CNHG60011 105 11-speed Chain CNHG60111 (equiv:) Shimano CNHG60011 105 11-speed Chain Shimano CNHG70011 Ultegra 11-speed Chain CNHG70111 (equiv:) Shimano CNHG70011 Ultegra 11-speed Chain CNHG74 (equiv:) Shimano CNHG75 10-speed Chain Shimano CNHG75 10-speed Chain Shimano CNHG90011 Dura Ace 11-speed Chain CNHG90111 (equiv:) Shimano CNHG90011 Dura Ace 11-speed Chain CNHG94 (equiv:) Shimano CNHG95 10-speed Chain Shimano CNHG95 10-speed Chain CNM980 (equiv:) Shimano CNM981 10-speed Chain Shimano CNM981 10-speed Chain Shimano CS4600 Cassette Sprocket Shimano CS5600 105 10-speed Cassette Sprocket Shimano CS5700 105 10-speed Cassette Sprocket Shimano CS5800 105 11-speed Cassette Sprocket Shimano CS6600 Ultegra 10-speed Cassette Sprocket Shimano CS6700 Ultegra 10-speed Cassette Sprocket Shimano CS6800 Ultegra 11-speed Double Cassette Sprocket Shimano CS7800 Dura Ace 10-speed Cassette Sprocket Shimano CS7900 Dura Ace 10-speed Cassette Sprocket Shimano CS9000 Dura Ace Double 11-speed Cassette Sprocket Shimano CSHG50010 10-speed Cassette Sprocket Shimano CSHG6210 10-speed Cassette Sprocket Shimano CSHG70011 105 11-speed Cassette Sprocket Shimano CSHG80011 Ultegra 11-speed Double Cassette Sprocket Shimano CSHG8110 10-speed Cassette Sprocket Shimano CSM77110 10-speed Cassette Sprocket Shimano CSM980 10-speed Cassette Sprocket Shimano CSR7000 105 11-speed Cassette Sprocket Shimano CSR8000 Ultegra 11-speed Double Cassette Sprocket Shimano CSR9100 Dura Ace Double 11-speed Cassette Sprocket Shimano FC4600 Tiagra Double 10-speed Crankset Shimano FC4603 Tiagra Triple 10-speed Crankset Shimano FC4650 Tiagra Double Compact double 10-speed Crankset Shimano FC4700 Tiagra Double 10-speed Crankset Shimano FC4703 Tiagra Triple 10-speed Crankset Shimano FC5600 105 Double 10-speed Crankset Shimano FC5603 105 Triple 10-speed Crankset Shimano FC5650 105 Compact double 10-speed Crankset Shimano FC5700 105 Double 10-speed Crankset Shimano FC5703 105 Triple 10-speed Crankset Shimano FC5750 105 Compact double 10-speed Crankset Shimano FC5800 105 Double 11-speed Crankset FC6600 (equiv:) Shimano FC6601 Ultegra 10-speed Double Crankset Shimano FC6601 Ultegra 10-speed Double Crankset FC6603 (equiv:) Shimano FC6604 Ultegra 10-speed Triple Crankset Shimano FC6604 Ultegra 10-speed Triple Crankset Shimano FC6650 Ultegra 10-speed Compact double Crankset Shimano FC6700 Ultegra 10-speed Double Crankset Shimano FC6703 Ultegra 10-speed Triple Crankset Shimano FC6750 Ultegra 10-speed Compact double Crankset Shimano FC6800 Ultegra 11-speed Double Crankset Shimano FC7800 Dura Ace Double 10-speed Crankset Shimano FC7803 Dura Ace Triple 10-speed Crankset Shimano FC7900 Dura Ace Double 10-speed Crankset Shimano FC7950 Dura Ace Compact double 10-speed Crankset Shimano FC9000 Dura Ace Double 11-speed Crankset Shimano FCR460 Double Crankset Shimano FCR563 Triple Crankset Shimano FCR565 Double Compact double Crankset Shimano FCR7000 105 Double 11-speed Crankset Shimano FCR8000 Ultegra 11-speed Double Crankset Shimano FCR9100 Dura Ace Double 11-speed Crankset FCR9100P (equiv:) Shimano FCR9100 Dura Ace Double 11-speed Crankset Shimano FCRS400 Crankset Shimano FCRS500 Double Crankset Shimano FCRS510 Double Crankset Shimano FCRX600 GRX Gravel Adventure Crankset Shimano FCRX810 GRX Gravel Adventure Double Crankset Shimano FD4600 Tiagra Double 10-speed Front Derailer Shimano FD4603 Tiagra Triple 10-speed Front Derailer Shimano FD4700 Tiagra Double 10-speed Front Derailer Shimano FD4703 Tiagra Triple 10-speed Front Derailer Shimano FD5600 105 10-speed Front Derailer Shimano FD5603 105 Triple 10-speed Front Derailer Shimano FD5700 105 Double 10-speed Front Derailer Shimano FD5703 105 Triple 10-speed Front Derailer Shimano FD5800 105 Double 11-speed Front Derailer Shimano FD5801 105 Double 11-speed Front Derailer Shimano FD6600 Ultegra 10-speed Double Front Derailer Shimano FD6603 Ultegra 10-speed Triple Front Derailer Shimano FD6700 Ultegra 10-speed Double Front Derailer Shimano FD6703 Ultegra 10-speed Triple Front Derailer Shimano FD6770 Ultegra 10-speed Double Di2 Front Derailer Shimano FD6800 Ultegra 11-speed Double Front Derailer Shimano FD6870 Ultegra 11-speed Double Di2 Front Derailer Shimano FD7800 Dura Ace Double 10-speed Front Derailer Shimano FD7803 Dura Ace Triple 10-speed Front Derailer Shimano FD7900 Dura Ace Double 10-speed Front Derailer Shimano FD7970 Dura Ace Double 10-speed Di2 Front Derailer Shimano FD9000 Dura Ace Double 11-speed Front Derailer Shimano FD9070 Dura Ace Double 11-speed Di2 Front Derailer Shimano FDR460 Double Front Derailer Shimano FDR7000 105 Double 11-speed Front Derailer Shimano FDR8000 Ultegra 11-speed Double Front Derailer Shimano FDR8050 Ultegra 11-speed Double Di2 Front Derailer Shimano FDR9100 Dura Ace Double 11-speed Front Derailer Shimano FDR9150 Dura Ace Double 11-speed Di2 Front Derailer Shimano FDRX400 GRX Gravel Adventure Double Front Derailer Shimano FDRX810 GRX Gravel Adventure Double Front Derailer Shimano FDRX815 GRX Gravel Adventure Double Di2 Front Derailer Shimano RD4601 Tiagra Double 10-speed Rear Derailer Shimano RD4603 Tiagra Triple 10-speed Rear Derailer Shimano RD4700 Tiagra Double 10-speed Rear Derailer Shimano RD4703 Tiagra Triple 10-speed Rear Derailer Shimano RD5600 105 Double 10-speed Rear Derailer Shimano RD5603 105 Triple 10-speed Rear Derailer Shimano RD5700 105 Double 10-speed Rear Derailer RD5700A (equiv:) Shimano RD5700 105 Double 10-speed Rear Derailer Shimano RD5701 105 Double 10-speed Rear Derailer Shimano RD5703 105 Triple 10-speed Rear Derailer Shimano RD5800 105 Double 11-speed Rear Derailer Shimano RD6600 Ultegra 10-speed Double Rear Derailer Shimano RD6603 Ultegra 10-speed Triple Rear Derailer Shimano RD6700 Ultegra 10-speed Double Rear Derailer Shimano RD6700A Ultegra 10-speed Rear Derailer Shimano RD6703 Ultegra 10-speed Triple Rear Derailer Shimano RD6770 Ultegra 10-speed Double Di2 Rear Derailer Shimano RD6800 Ultegra 11-speed Double Rear Derailer Shimano RD6870 Ultegra 11-speed Double Di2 Rear Derailer Shimano RD7800 Dura Ace Double 10-speed Rear Derailer Shimano RD7803 Dura Ace Triple 10-speed Rear Derailer Shimano RD7900 Dura Ace Double 10-speed Rear Derailer Shimano RD7970 Dura Ace Double 10-speed Di2 Rear Derailer Shimano RD9000 Dura Ace Double 11-speed Rear Derailer Shimano RD9070 Dura Ace Double 11-speed Di2 Rear Derailer Shimano RDR35010 10-speed Rear Derailer Shimano RDR7000 105 Double 11-speed Rear Derailer Shimano RDR8000 Ultegra 11-speed Double Rear Derailer Shimano RDR8050 Ultegra 11-speed Double Di2 Rear Derailer Shimano RDR9100 Dura Ace Double 11-speed Rear Derailer Shimano RDR9150 Dura Ace Double 11-speed Di2 Rear Derailer Shimano RDRX400 GRX Gravel Adventure Rear Derailer Shimano RDRX800 Double Rear Derailer Shimano RDRX805 Double Di2 Rear Derailer Shimano RDRX810 GRX Gravel Adventure Double Rear Derailer Shimano RDRX815 GRX Gravel Adventure Double Di2 Rear Derailer Shimano SLBSR1 Shift Brake Lever Shimano SMFC5600 105 10-speed Bottom Bracket SMFC6600 (equiv:) Shimano SMFC6601 Ultegra 10-speed Bottom Bracket Shimano SMFC6601 Ultegra 10-speed Bottom Bracket SMFC7800 (equiv:) Shimano SMFC7801 Dura Ace 10-speed Bottom Bracket Shimano SMFC7801 Dura Ace 10-speed Bottom Bracket Shimano ST4600 Tiagra Double 10-speed Shift Brake Lever Shimano ST4603 Tiagra Triple 10-speed Shift Brake Lever Shimano ST4700 Tiagra Double 10-speed Shift Brake Lever Shimano ST4703 Tiagra Triple 10-speed Shift Brake Lever Shimano ST4720 Tiagra Double 10-speed - Hydraulic Disc - Shift Brake Lever Shimano ST4725 Tiagra Double 10-speed - Hydraulic Disc - Shift Brake Lever Shimano ST5600 105 Double 10-speed Shift Brake Lever Shimano ST5601 105 Double 10-speed Shift Brake Lever Shimano ST5603 105 Triple 10-speed Shift Brake Lever Shimano ST5700 105 Double 10-speed Shift Brake Lever Shimano ST5703 105 Triple 10-speed Shift Brake Lever Shimano ST5800 105 Double 11-speed Shift Brake Lever Shimano ST6600 Ultegra 10-speed Double Shift Brake Lever Shimano ST6603 Ultegra 10-speed Triple Shift Brake Lever Shimano ST6700 Ultegra 10-speed Double Shift Brake Lever Shimano ST6703 Ultegra 10-speed Triple Shift Brake Lever Shimano ST6770 Ultegra 10-speed Double Di2 Shift Brake Lever Shimano ST6800 Ultegra 11-speed Double Shift Brake Lever ST6870 (equiv:) Shimano ST6871 Ultegra 11-speed Double Di2 Shift Brake Lever Shimano ST6871 Ultegra 11-speed Double Di2 Shift Brake Lever Shimano ST7801 Dura Ace Double 10-speed Shift Brake Lever Shimano ST7803 Dura Ace Triple 10-speed Shift Brake Lever Shimano ST7900 Dura Ace Double 10-speed Shift Brake Lever Shimano ST7970 Dura Ace Double 10-speed Di2 Shift Brake Lever ST9000 (equiv:) Shimano ST9001 Dura Ace Double 11-speed Shift Brake Lever Shimano ST9001 Dura Ace Double 11-speed Shift Brake Lever ST9070 (equiv:) Shimano ST9071 Dura Ace Double 11-speed Di2 Shift Brake Lever Shimano ST9071 Dura Ace Double 11-speed Di2 Shift Brake Lever Shimano STR460 Double Shift Brake Lever Shimano STR7000 105 Double 11-speed Shift Brake Lever Shimano STR7020 105 Double - Hydraulic Disc - 11-speed Shift Brake Lever Shimano STR7025 105 Double - Hydraulic Disc - 11-speed Shift Brake Lever Shimano STR785 - Hydraulic Disc - Di2 Shift Brake Lever Shimano STR8000 Ultegra 11-speed Double Shift Brake Lever Shimano STR8020 Ultegra 11-speed Double - Hydraulic Disc - Shift Brake Lever Shimano STR8025 Ultegra 11-speed Double - Hydraulic Disc - Shift Brake Lever Shimano STR8050 Ultegra 11-speed Double Di2 Shift Brake Lever Shimano STR8060 Ultegra 11-speed Double Di2 Shift Brake Lever Shimano STR8070 Ultegra 11-speed Double - Hydraulic Disc - Di2 Shift Brake Lever Shimano STR9100 Dura Ace Double 11-speed Shift Brake Lever Shimano STR9120 Dura Ace Double 11-speed - Hydraulic Disc - Shift Brake Lever Shimano STR9150 Dura Ace Double 11-speed Di2 Shift Brake Lever Shimano STR9160 Dura Ace Double 11-speed Di2 Shift Brake Lever Shimano STR9170 Dura Ace Double 11-speed - Hydraulic Disc - Di2 Shift Brake Lever Shimano STR9180 Dura Ace Double 11-speed - Hydraulic Disc - Di2 Shift Brake Lever Shimano STRS405 - Hydraulic Disc - Shift Brake Lever Shimano STRS505 Double - Hydraulic Disc - Shift Brake Lever Shimano STRS685 Double - Hydraulic Disc - Shift Brake Lever STRS785 (equiv:) Shimano STR785 - Hydraulic Disc - Di2 Shift Brake Lever Shimano STRX400 GRX Gravel Adventure Double - Hydraulic Disc - Shift Brake Lever Shimano STRX600 GRX Gravel Adventure Double - Hydraulic Disc - Shift Brake Lever Shimano STRX810 GRX Gravel Adventure Double - Hydraulic Disc - Shift Brake Lever Shimano STRX815 GRX Gravel Adventure Double - Hydraulic Disc - Di2 Shift Brake Lever

(optional) filter the parts list by category:

Clear all Bottom Brackets Cranksets Sprockets Brake Shift Levers

Rear Derailers Front Derailers Brake Calipers Chains

(optional) filter the parts list by keywords:


Step Two: Next, select the category of products you are interested in. Submit to have the magic results list (compatible parts).

Brake Shift Levers Chains Cranksets Brake Calipers Cassette Sprockets Front Derailers Rear Derailers Bottom Brackets

get results:

Trouble identifying the parts on your bike? Don't know where the part is labeled? These questions are answered on the Finding IDs Guide - follow this link to Find IDs.

Compatibility Charts and News 2000-2024

Store

Next some Shimano products available from our affiliated shop: Amazon (speedy delivery, good selection). The below links take you there. Read this link for background on the affiliate shop.

Product	Condition	Check at the Store
	Available	Electronic Di2 Group Sets: Shop the Di2 Components
	Available	12-speed Dura Ace 9200 series: Shop the Dura Ace 9200 Series Section
	Available	11-speed Dura Ace 9100 series: Shop the Dura Ace 9100 Series Section
	Available	11-speed Dura Ace 9000 series: Shop the Dura Ace 9000 Series Section
Dura-Ace 7900	Low Stock	10-speed Dura-Ace 7900 series: Shop the Dura-Ace 7900 Series Section
	Available	12-speed Ultegra R8100 series: Shop the Ultegra R8100 Series Section
	Available	11-speed Ultegra R8000 series: Shop the Ultegra R8000 Series Section
	Available	11-speed Ultegra 6800 series: Shop the Ultegra 6800 Series Section
	Available	10-speed 6700 series: Shop the Ultegra 6700 Series Section
	Available	12-speed 105 R7100 series (2023): Shop the Shimano 105 R7100 Series Section
	Available	11-speed 105 R7000 series (2019): Shop the Shimano 105 R7000 Series Section
	Available	11-speed 5800 series (2014): Shop the Shimano 105 5800 Series Section
	Available	10-speed 5700 series: Shop the Shimano 105 5700 Series Section
Dura-Ace 7800	Spares (low stock)	10-speed Dura-Ace 7800 series: Shop the Dura-Ace 7800 Series Section
	Cogsets	Dura Ace: CSR920012 (12-speed)    CSR9100    CS9000(11-spd)    CS7900    CS7800    CS7700(9-spd)    CS7401(8-spd) Ultegra: CSR810112 (12-speed)    CSR810012 (12-speed)    CSR8000    CS6800   CS6700    CS6600    CS6500(9-spd)    CSHG90-8(8-spd) 105: CSR710112 (12-speed)    CSR710012 (12-speed)    CSHG70011    CSR7000    CS5800    CS5700(10-spd)    CS5600    CS5500(9-spd)    CSHG70-8(8-spd) Other: CSHG80011(11-spd)    CSHG500-10(10-spd)    CSHG50-9(9-spd)    CSHG70-9(9-spd)    CSHG50-8(8-spd) SRAM: Cassette Section
	Brake Calipers	Dura Ace: BRR9200    BRR9210    BRR9110    BRR9100    BR9010    BR9000    BR7900    BR7800 Ultegra: BR6810    BRR8000(disc)    BRR8010(disc)    BR6800    BR6700    BR6600    GRX: BR-RX810    105: BRR7010    BRR7000    BR5800    BR5810    BR5710    BR5700    BR5600    Disc calipers and pads: BRR9270    BRM9000    BRM9020    BRM7000    BRM820    BRM4050    BRR9170    BRR8070    BRRS805    BRM8000    BRRS785    BRRS505   BRM9120    BRM9100    BRM8020    BRMT520    BRR7070    Mechanical disc calipers: BRCX77    BRR317    BRR517   BRRS305    Other: BR4700 (Tiagra)
	Brake Pads[*] and rotors	Dura Ace: R55C4    R55C3    Carbon Rims    R55C Ultegra: (use Dura Ace, Kool Stop, Swiss Stop, or other compatible products) Disc Rotors: RTMT900    RTMT905    RTEM900    RTMT800    SMRT99    SMRT86    RTEM900    SMRT76    RTCL900    RTCL800    RTEM800    SMRT800    SMRT900    SMRT81    SMRT70    Swiss Stop: High Performance for Carbon and other rims Kool Stop: Salmon(all-weather)    Black    Dual
	Brake Shift Levers	Dura Ace: STR9270 (12-speed Di2 disk brake)    STR9250 (12-speed Di2 rim brake)    STR9150    STR9160 (Di2 TT/Tri)    STR9170 (Di2 Disk brake)    STR9100    STR9120 (hydraulic brake)    ST9070 (Di2)    ST9071 (Di2 TT)    ST9001    ST9000    ST7900    ST7801    ST7803(triple)    ST7970(Di2)    ST7700(9-spd)    ST7703(9-spd triple)    ST7400(8-speed) Ultegra: STR8170 (Di2 disk brake)    STR8150 (Di2 rim brake)    STR8025 (hydraulic)    STR8000    STR8020(hydraulic)    STR8050    STR8060    STR8070(Di2 hydraulic)    ST6871(Di2)    ST6800    ST6700    ST6703(triple)    ST6603(triple)    ST6600    ST6770(Di2)    ST6500(9-speed)    ST6510(9-speed)    ST6400(8-speed) Di2 remote: SLBSR1 (Di2 TT)    GRX: STRX815 (Di2 hydraulic disc)    STRX610(hydraulic disc)    STRX600    STRX820 (hydraulic disc)    STRX810 (hydraulic disc)    105: STR7170 (Di2 disk brake)    STR7120 (hydraulic disk brake)    STR7000    STR7020    STR7025    ST5800    ST5700    ST5703(triple)    ST5603(triple)    ST5601    ST5510(9-spd) Disc: STRS685(mech.)    STRS505(mech.)    STRS785(Di2)    STR785 Other: ST4720 (Tiagra Disc) ST4725 (Tiagra Disc) ST4700 (Tiagra 10-speed)    ST4703 (10-spd triple)    STR700    ST4500 (Tiagra 9-speed)    ST4400 (Tiagra 8-spd) Plates: Cover Plates for Shift Levers.
	Computers and Tech [*]	Speed Sensor for disc brake: SMDUE11    Flight Deck Computer: SC-6502 computer    SM-SC70 wireless harness for Flight Deck    SM-EWW01 wireless transmitter (Di2 to computer)    SM-EW90 stem-based Di2 junction CM-1000 Sport Camera PC Linkage Device: SMPCE02 (for Di2 to computer, USB)
	Cables and Hoses [*]	Derailer: SP41 (Housing only)    cables (stainless, coated)    Set: Dura Ace 7900    Set (choose colors)    end caps Brakes: hydraulic brake hose chart    Hydraulic hose options: SMBH90JKSSR    SMBH90SBM    SMBH90SBLS    SMBH90SBS    SMBH90SB    SMBH59JKSS    SMBH59SB    SMBH59SBJ    Brake Cables (stainless, coated)    2021 cutting edge BC9000    Full Cable Set (choose color)
	Front Derailer	Dura Ace: FDR9250 (Di2)    FDR9150 (Di2)    FDR9100    FD9070 (Di2)    FD9000(11-speed)    FD7900    FD7970(Di2)    FD7800    FD7803(triple)    FD7700(9-speed)    FD7703(9-spd triple) Adapters: SMAD91    Ultegra: FDR8150(Di2)    FDR8000    FDR8050(Di2)    FD6870 (Di2)    FD6800    FD6700    FD6770(Di2)    FD6703(triple)    FD6600    FD6603(triple)    FD6500(9-speed)    FD6503(9-speed triple) GRX: FDRX815 (Di2)    FDRX820 (12-speed)    FDRX810    105: FDR7150 (Di2 12-speed)    FDR7100 (12-speed)    FDR7000    FD5801    FD5800    FD5700    FD5703(triple)    FD5600    FD5603(triple)    FD5501(9-spd)    FD5504(9-spd triple) Other: FD4700 (Tiagra 10-spd)    FD4703 (10-spd triple)    FD4500 (Tiagra 9-spd)    FD4503 (9-spd triple)    FD4403 (8-spd triple)
	Rear Derailer	Dura Ace: RDR9250    RDR9150    RDR9100    RD9000(11-speed)    RD7900    RD7970(Di2)    RD7800    RD7803(triple)    RD7701(9-spd)    RD7402(8-spd) Ultegra: RDR8150 (Di2 12-speed)    RDR8000    RDR8050(Di2)    RD6870 (Di2)    RD6800(SS)    RD6800(GS)    RD6700A(GS)    RD6700    RD6770(Di2)    RD6703(triple)    RD6600    RD6603(triple)    RD6500(9-spd)    RD6400(8-spd) GRX: RDRX815 (Di2)    RDRX822(1x12 speed)    RDRX820    RDRX810    RDRX400    105: RDR7100 (12-speed)    RDR7150 (Di2 12-speed)    RDR7000    RD5800    RD5701    RD5700    RD5703(triple)    RD5600    RD5603(triple)    RD5501(9-spd) Other: RD4700(10-spd)    RD4500(9-spd)
	Cranks	Dura Ace: FCR9200    FCR9200P(power meter)    FCR9100P(power meter)    FCR9100    FC9000    FC7900    FC7950(compact)    FC7800    FC7803(triple)    FC7701(9-spd)       FC7703(9-spd triple)    Ultegra: FCR8100    FCR8100P (power meter)    FCR8000    FC6800    FC6700    FC6750(compact)    FC6703(triple)    FC6601    FC6604(triple)    FC6650(compact)    FC6500(9-spd)    FC6503(9-spd triple) GRX: FCRX820-2    FCRX810    FCRX610-2    FCRX600    105: FCR7100    FCRS520 (12-speed)    FCR7000    FC5800    FC5700    FC5703(triple)    FC5750(compact)    FC5600    FC5603(triple)    FC5650(compact)    FC5502(9-spd)    FC5505(9-spd triple) Other: FCRS510    FC4700 (10-spd Tiagra)    FC4703 (10-spd triple)    FC4500(9-spd Tiagra)    FC4550(9-spd)    FC4503(triple)
	Chainrings	Dura Ace: FC9000    FC7900       FC7800    FC7803(triple)    FC7701(9-spd)       FC7703(9-spd triple)    Ultegra: FC6700    FC6750(compact)    FC6703(triple)    FC6601    FC6604(triple)    FC6650(compact)    FC6500(9-spd)    FC6503(9-spd triple) 105: FC5700    FC5703(triple)    FC5750(compact)    FC5600    FC5603(triple)    FC5650(compact)    FC5502(9-spd)    FC5505(9-spd triple) Other: FC4700 (10-spd Tiagra)    FC4703 (10-spd triple)    FC4500(9-spd Tiagra)    FC4550(9-spd)    FC4503(triple)
	Bottom Bracket	Dura Ace: BBR9100    SMBB9241 (press-fit)    BB9000(11-speed)    BB7900    SMFC7801    BB7700    BB7703    BB7410    Ultegra: SMBBR60    BB6700    SMFC6601    BB6500    105: BB5700    SMFC5600    BB5500    Other: BBRS500    SMFC4500    BBUN72    BBUN52    BBUN40
	Hubs	Dura Ace: FH9000(rear, 11-sp.)    FH7900(rear)    FH7800(rear)    FH7700(rear)    HB7900(front)    HB7800(front)    HB7700(front)    Ultegra: FHRS770(disc)    FH6800(rear)    FH6700(rear)    FH6600(rear)    HB6700(front)    HB6600(front)    FH6402 105: FHR7070(disc)    FHR7000    FH5800(rear)    HB5800(front)    FH5700(rear)    HB5700(front)    Disc: FHRS505    FHRS400 Other: FH4500(Tiagra)
	Chains	Dura Ace: CNM9100(12-speed)    CNHG90011(11-speed)    CN9000(11-speed)    CN7901    CN7801    CN7701(9-spd)    CN7401(8-spd) Ultegra: CNM8100 (12-speed)    CNHG700-11    CN6800    CN6701    CN6600    CNHG93    CNHG91 105: CNM7100 (12-speed)    CNHG600-11    CN5701    CN5600    CNHG73    CNHG70 Other: CNHG95    CNHG53    CNHG50 KMC: KMC Chain Section Wipperman: Wipperman Chains and Connecting Links

Compatibility Notes

Get the latest compatibility chart from the US source directly. Shimano site charts available right here.

Shimano R700 (crankset) is the compact version of Ultegra (back in 2008). R600 is the compact version of Shimano 105.

B-level compatibility: "Shimano says Ultegra 6700 has A-level compatibility ONLY with 6700 derailers. In an effort to offer some backward compatibility, the shifters work with both 6600-level Ultegra (and 7800-level Dura-Ace), but Shimano's terminology is B-level compatibility. It works, but it's not ideal." The dotted lines in the charts represent B-level compatibility. A real-world review of B-level compatibility is included below.

Another way they have put it: "ST-6700 levers are backwards compatible with 6600 series Ultegra drivetrains and brakes, though Shimano says mixing the groups will not take full advantage of the new features. The front derailer stroke of the new group is similar to the 6600 front derailer, but the brakes have revised pivots like Dura Ace."

Cogsets, sprockets compatibility: For compatibility of the many rear Cogsets with Shimano drivetrains, please see the excellent compendium on the Sheldon site: Shimano Cogset Compatibility which covers many options from Shimano, IRD, Miche, SRAM, SunRace, and custom.

Di2 7970 compatibility The electronic Di2 shifting announced in 2009 first featured Di2 7970 series. Shimano said "The new Di2 electronic group shares mechanical Dura-Ace's crankset, chain, cassette and brakes." The compatibility charts for Di2 were first released in 2015. Already, we can conclude that the 7970 series is fully compatible with the FC7900, CS7900, and CN7900. We know the Di2 derailers are all short cage only - they have no compatibiility with triple cranks. When electronic Ultegra was released, it was indicated that 7970 and 6770 would be incompatible due to different wiring.

Di2 9070 compatibility As with 7970 series, Shimano's statement "The new Di2 electronic group shares mechanical Dura-Ace's crankset, chain, cassette and brakes" holds with the 9070 series as well. These components are compatible with FC9000, CS9000, CN9000, and BR9000 (with only the shifter compatibility with brake calipers shown in the '13 and '14 charts). We know there's no backward compatibility with Dura Ace 7970 due to differences in wiring. Read the next section for comments about compatibility with the 6770 and 6870 series.

Di2 Ultegra - 6770 and 6870 - compatibility The first comment to make about Ultegra Di2 is just Shimano's original statement, which is expected if not obvious: "The new Di2 electronic group shares [the mechanical group]'s crankset, chain, cassette and brakes". This holds for the Ultegra 6770 and 6870 series as well. Shimano has kept the charts simple by excluding the Di2 components. But what about compatibility among the Di2 groups? (Added in 2015 - See Di2 Compatibility Page). There's no backward compatibility with Dura Ace 7970 due to differences in wiring. The other groups, after 7970, share the same wiring. There are user sites in Japan as well as other places assuring that there are no issues between, say, ST6770 and RD9070, or between ST6770 and FD6870. On the other hand, the 9070 upgrade kit claims it cannot be used to convert 10-speed groups as the chainring, chain, and cassette would all be mismatched.
Regarding remote sprinter shifter for Di2: product SW-R610 (remote sprinter shifter) is compatible with ST6870. However, it cannot be used with ST6770 "because the shape of its connector is different from that of the E-tube." The remote sprint shifter can of course also be used with ST9070 (Dura Ace).

Triple Crank and compatibility: See the 2011 front drivetrain compatibility chart above for some details. The left (front) shifter, the crankset, and both derailers may be specific for a triple gearling. If you have a 105 front brifter, you may be lucky as it's non-indexed so the same brifter can be used with a double or a triple. If yours is Ultegra, there should be a difference so you need the specific front brifter for double or triple whether you're on the 6600 or 6700 series. The front derailer has much different spacing on a triple crankset. And the rear derailer has a long cage to collect more chain - so both of these are specific for triple gearing. Another thing that many people don't realize - the new Shimano chains are *not* triple-compatible. (As indicated on the 2011 compatibility chart), The reason for this is that the new chains (CN-7901, 6701, or 5701) do not allow enough lateral movement. So for the moment, your triple chain needs should be satisfied by KMC, by SRAM, Wippermann maybe, or by the older Shimano chains (CN-7801, CN-6600, CN-5600).

Brake Shoes and Pads R55C3 is the model number for the Shimano branded spare brake pads (2011). It comes in different compounds for alloy (aluminum) and carbon rims. The pad length is 55mm and this pad is compatible with BR-7900, BR-7800, BR-7700, BR-6700, BR-6600, BR-6500, BR-5700, BR-5600, BR-5501, BR-5500, BR-R650, BR-R600, BR-R561 calipers. R55C3 replaces the R55C model which used the same specification but slightly different compounds. Kool Stop has for many years marketed fully compatible replacement pads in a few different compounds. Swiss Stop markets high-performance pads which are also compatible. There are also a few other vendors. R55C4 is the model number for the Shimano branded pads for the 11-speed sets from 2014: BR-9000, BR-6800, BR-6810, BR-9010 are designed to use R55C4.

Brake Calipers and Tire Sizes According to Specifications (Aug 2014), maximum tire sizes for Shimano road calipers are given as follows: Models BR-9000, BR-9010, and BR-6800 allow up to 25mm tires; models BR-6810, BR-5810, and BR-5800 allow up to 28mm tires. No other guidance for older caliper models was provided.

FC5603 crank limitation For compatibility with front derailer FD5603, the FC5603 Shimano 105 crank should use chainrings of 50-39-30 tooth sizes. This is in Shimano charts for Front Drivetrain, 2008 and 2009. This likely indicates a limitation in the front derailer capacity, but I don't know why the Ultegra FD6603, which has capacity for the standard 52-39-30 tooth ringed Ultegra triple crank, would not also support the smaller toothed 105 crankset. There is no compatibility shown for this combination in any of the charts.

Rear derailer capacity limits For Details, see derailer capacity table. Shimano charts provide for an exception to the compatibility rules between cassette sprockets and rear derailers. Specifically, only the 7900-, 6700-, and 5700- series rear derailers have sufficient capacity to support a cassette with sprockets differing as much as 16 teeth or more from small to large cog. For this reason, the 11-28 tooth cogset (17 tooth difference), available in 7900-, 6700-, and 5700- series is not compatible with the older series rear derailers. The 11-27 tooth cogset has the same limitation. For the older 10-speed derailers (7800-, 6600-, and 5600-series), the maximum cogset tooth size difference supported is up to 15 teeth (as in the 12-27 size). In the 2012-2015 model years, the available products and their limits have seen some additions and special cases. These details are being tracked in the derailer capacity table. You can also Shop Now at our store.

Junior sprockets with 13 or more toothed top gear A difference exists in cassette sprockets labeled CS-6600 which are for "junior gearing". Do not use the "junior gearing" CS-6600 sprockets with normal freehubs - they do not fit. Junior gearing CS-6600 sprockets can be identified as having a top gear of 13, 14, 15, or 16 teeth. The normal size sprockets, which are compatible with all normal freehubs, can be identified as having a top gear of 12 or 11 teeth.
Another important difference exists with the junior sprockets: their spacer requirements differ. Riders planning to try one of the sprockets with top gear 13 or more teeth - research this part carefully. Other riders can safely follow the compatibility charts for your planning.
Finally, do not use one of these junior sprockets with a triple front chainwheel -that combination is not compatible.
Details on Junior sprocket compatibility have been provided in a link from the 2006 compatibility page.

Part Naming Color Codes Shimano parts such as FC-6601 may have a 1-letter suffix, for example FC-6601-G. This letter is a color indicator and for the purposes of compatibility, this letter is ignored. The color does not affect compatibility in any part combination. Use the charts and the compatibility magic app without the color suffix. Other suffixes were for example, RD-5600-S (silver), ST-5600-L (black), where the FC-6601-G is gray. Parts with no suffix are silver, as is the suffix S, only used when there is another color option for the same part.

Brake and Shift Cables
Derailer: For best results always replace the cables when upgrading any drivetrain part. In 2010, Shimano introduced colored cable housing options whereas previously only "Dura Ace Gray" was available. The SP41 PTFE cableset is standard replacement derailer cable and housings for the Shimano 7900 Dura-Ace system. Compatible with all 7- through 10-speed Shimano road shifter/derailer sets as well as SRAM. Shimano's 7900 shift cable/housing set is ideal for the Dura-Ace 7900, Ultegra 6700, and 105 5700 STI levers with cable routing under the bar tape. In fact, it was because of the under-the-bar-tape cable positioning change first designed for Dura Ace 7900 that the PTFE-lubricated housing was introduced. PTFE (better known as DuPont Teflon) coated cables do a good job of minimizing friction and greatly enhance shifting performance. The engineers at Shimano have spent countless hours researching and developing shift cables and housing that will optimize the performance of their shifters and derailleurs. The PTFE(Teflon) coated derailer cable set is the most advanced they have ever produced. A complete set of cable and housing for Shimano derailers (enough for one road bicycle) features 4mm SIS-SP41 housing; Choose your color; Weight: 160 grams (reported); Cable Diameter: 1.2 mm; Cable Lengths: 2 x 2000 mm; Stainless steel cable for long life in all conditions. (Tip: Use the "gray" Dura Ace pack to get all end caps and ferrules to complete the job - the blue pack has been reported to contain fewer of these).
Brakes: The 7900 Dura-Ace brake cable set has been optimized for Shimano levers but makes a great upgrade for most road systems. New super low friction PTFE coated cables virtually eliminate excess friction for top performance. The brake cable end fits road bike levers only. A complete set of cable and housing for Shimano brakes (enough for one road bicycle) features 1400mm x 5mm housing x 1; 800mm x 5mm housing x 1; 2050mm x 1.6mm cable x 1; 1000mm x 1.6mm cable x 1; PTFE coated stainless steel cable for long life in all conditions; two cable crimps, and two ferrules. 178 grams (reported).

Computers
The Shimano Flight Deck SC-6502 Computer head features the following: gearing and wheel size data for four bikes can be programmed and accessed from one computer head. Program one, two, or three chainrings; display shows the number of chainrings programmed. Gear size display: once shift is made, computer will momentarily show what chainring/gear combination bike is in, 53-12 etc. One button on each brake lever controls computer function.
Bracket and sensor kit sold separately. Compatible with compact road gearing.
Compatibility: The Flight Deck SC-6502 computer will work with STI levers ST-7800, ST-7900, ST-6600, ST-6603, ST-6700, ST-6703, and ST-5600. It is not compatible with brifters ST-5700 or ST-5703. As of 2014 (August), the Flight Deck computer is not compatible with the newer 11-speed brifters (ST-9000, ST-6800, ST-5800, per Shimano specifications. Use the wireless harness for all of the 10-speed brifters and the SC-6502. (10-speed Harness is ID SM-SC70) The wireless harness isn't completely wireless though. There are still wires that run from the STI levers to the computer (underneath the handlebar tape). But there is no wire running down the fork to the pickup.
The older SC-6501 Flight Deck will work with most 9-speed Shimano brifters. (ST-7700, ST-6510, ST-5500) Source: Shimano Tech Docs.
The Flight Deck computer is quite interesting. You pre-configure the computer to know what gears you have; whether the cassette is a 12-25 or a 11-23, for instance. The STI levers tell the computer what gear you're in. So, the computer always knows your gear ratio. From that, and from the wheel pickup, it knows how fast you're riding. And since it knows your speed and your gear, it can calculate your cadence. (The odd "feature" with this is the virtual cadence: it does not know whether you are pedaling at all, so on your downhill coasts, you will see a cadence value well over 100 when you're not even pedaling)

Shimano 105 Triple Shifter Change The 9-speed 105 front (left) shifter (model ST-5500 or ST-5510) is compatible with both a double or a triple crank configuration. Shimano's move to 10-speed cogsets initially started out like this: the 105 front shifter (left, ST-5600) was compatible with both a double or a triple crank configuration. But Shimano saw a large number of warranty claims due to breakage of the shifters caused by improper setup early on. Their response was to introduce the double-only compatible ST-5601 and the triple-only ST-5603. Ultegra and Dura-Ace already had the double-only and triple-only shifters.
So, an ST-5601 left shifter is the only one of the 10-speed 105s which is not compatible with triple cranksets. ST-5600 or ST-5603 are good for triples, and ST-5600 is actually a little more prone to damage when setup for double cranks.

2012 Rear Derailer low gearing options The 2012 Shimano compatibility chart (Rear section) shows the RD5700 and RD5700A. The differences between these boxes relates to the cogset support - specifically, the size of the largest cog supported. The RD5700, like its Ultegra and Dura Ace counterparts shown, can be used when your cogset has a large cog of 21 to 28 teeth. The RD5700A shown in the lower box with a Tiagra model, can be used in combination with a large cog of 25 to 30 teeth. Shimano began in 2012 to provide greater support for hill-climbing (low) gearing in double and compact-double configurations, possibly with an eye to phasing out triples in the future. With the market moving to 11 speed cogsets, this may make sense on road bikes. Refer to the Shimano Compatibility Tables on this site for notes on Derailer Capacity, which affects cogset compatibility.

2013 Rear Derailer low gearing options The 2013 Compatibility Chart (Rear section) shows in separate boxes the RD6700A (Ultegra) and the RD5701 (105). As noted, these differences relate to the cogset support - specifically, the size of the largest cog supported. The RD6700A can be used with a large cog of 23 to 30 teeth, while the RD5701 shown in the lower box with a Tiagra model, can be used with a large cog of 25 to 32 teeth. Shimano began in 2012 to provide greater support for low gearing in double and compact-double configurations. Refer to the Shimano Compatibility Tables on this site for notes on Derailer Capacity, which affects cogset compatibility.

2014-15 Rear Derailer low gearing options The 2014 and 2015 Compatibility Charts (Rear section) showsa lot of gearing options in separate boxes. Starting with 11-speed models, RD6800 and 5800 come in SS (short cage) and GS (medium cage) now. And on the 10-speed models, the RD6700A and RD5701 are separated. As noted, these differences relate to the cogset compatibility - specifically, the size of the largest cog that will work. The RD6800SS can be used with a large cog of 23 to 28 teeth, while the RD6800GS can be used with a large cog of 28 to 32 teeth. Shimano began in 2012 to provide greater support for low gearing in double and compact-double configurations, possibly with an eye to phasing out triples in the future. Refer to the Shimano Compatibility Tables on this site for notes on Derailer Capacity, which affects cogset compatibility.

Rear Derailer Naming and Charts Most of the Shimano charts leave off mention of triple rear derailers, but there are important distinctions to be aware of. For the magic app and these note pages, we use the standard "03" naming convention for triple rear derailers. There are actually several possible naming conventions for rear derailers, and it is important to distinguish them. The triple-compatible rear derailers, designated on this site as RD-6603 and other IDs ending in "03" (possibly "04"), have a longer cage to be able to take up more chain, as triples run longer chains than doubles. In other places, and some of Shimano's later charts, these triple rear derailers are designated "GS" as in "RD-6600-GS". These are the same thing. One other description you will hear is "long cage" or "medium cage" to refer to road triples. On a road bike, it's considered long since it's longer than a short-cage RD used for doubles. But since there exist even longer cages (on MTBs for example), the road triple RDs are also called "medium cage" sometimes. Double Derailers: These are designated here as ending in "00" or "01". Other places use "RD-6600-SS" and other IDs suffixed with "SS", or possibly "RD-6600" short cage. There is little difference in functionality among RDs, so the Magic assumes compatibility with respect to triple RDs as parallel to double RDs.

Rear Derailer Capacity Note The rear drivetrain compatibility Chart of 2017 points out the following guidance for rear derailers: RD-R9100 and RD-R9150 compatibility is confirmed for use with a cassette sprocket of 25 to 30 teeth (low, inclusive). RD-5800-GS, RD-6870-GS, and RD-6800-GS should be used with a cassette sprocket of 28 to 32 teeth. RD-9000, RD-6800-SS, RD-5800-SS should be used with a cassette sprocket of 23 to 28 teeth (low, inclusive).
With 10-speed sprockets, the guidance is this: RD-6700A (models short cage and long cage): use with 23-30 tooth cassette; RD-5701, RD-4601: use with 25-30 tooth cassette; RD-5703, RD-4603 (aka RD-5701-GS and RD-4601-GS aka long cage): use with 27-32 tooth cassette (low gear) for double configuration, use with 25-30 tooth cassettes for triple configurations; RD-R350-10: use with 30-34 tooth cassette; RD-4703 (aka RD-4700-GS): use with 25-32 tooth low cassette sprocket.

Tip: for triple rear derailers, look for "GS" or "long cage" (sometimes aka "medium cage") or the "03" or "04" numbers. For double rear derailers, look for "SS" or "short cage" or the "00" or "01" numbers. (example: RD-6600-GS is long cage)

Shimano Chain compatibility: Generally, chains tend to be compatible between SRAM and Shimano as long as they are of equal gearing. Purist mechanics, though, have been known to suggest Shimano-only for the latest 10-speed models (5701 105 chain with Shimano's 5700, 6700, and 7900-series groupsets for example). This point is debated, but if you want the no-debate solution, run the Shimano chains with your system (they're not that expensive fortunately). 10-speed chains won't work well with 9-speed mech and vice versa. Also, Wippermann and KMC provide chains compatible with Shimano. The 7900/6700/5700 series chains are not compatible with triple cranksets (see note above), and SRAM and KMC may fall into the same category as 7800 chains with respect to compatibility with 7900-series parts (see charts). And chains in these series will wear slightly less on the rear sprockets (when installed correctly) due to the asymmetry - outer link plates being a bit shaped for shifting. Wippermann provides an excellent joining pin which works pretty well with Shimano chains (but again purist mechanics have been known to debate this point for very slight irregularities observed). For 10-speeds, the KMC joining pin is also great, and with 9-speeds, the KMC or SRAM joining pins will work well with Shimano chains. The Shimano joining pin system requires a chain tool and is quite a bit harder to work with than any of the others.

Some comments about SRAM compatibility with Shimano:

• SRAM chains and cassettes are fully Shimano compatible. (true for 7800-series; see note above re: 7900-series)
• SRAM derailer/shifter sets are compatible with Shimano chains and cassettes (however be consistent with shifter / derailer choices. SRAM shifter and derailers can be used with Shimano chains, cassettes. They may not be optimal however, probably what Shimano calls "B-level" compatibility.
• For best results, replace the cables when upgrading any drivetrain part.

I can't stand the old adage that you are what you eat. You're not what you eat, you're a combination of the things you eat, do, think, believe, and feel. - Chris Carmichael

Running with Shimano Di2 now? Need to think twice about mixing components with other companies' products. Shimano has acknowledged this to be a common problem.

Mixing a non-Shimano crank or chain into a Shimano Di2 component group has resulted in crashes and destroyed derailleurs. Only the all-Shimano componentry will enable the repair to be covered by warranty.

The following is one rider's Summary of upgrading a bike to ST-6700 shifters from ST-6600. (this combination is dotted-line B-level compatible in Shimano's 2010 charts). This should give an illustration of "B-level compatibility" concept in practice.

"Shifting (Ultegra 6700 shifters with Ultegra 6600/Dura-Ace 7800 derailleurs):
The actual shifting is perfect. However, the FEEL of the shifters is not quite the same.
The front (left) shifting from small to large chainrings is probably better. The Ultegra 6700 shifter retains the feather/trim position like the ST-6600."

"However, my opinion is that the FEEL of the back (right) shifter is less positive than the 6600. As before, the actual shifting quality (accuracy, quickness, etc.) is unchanged." But the reviewer preferred the feel of the ST-6600 shifter when paired with the Dura-Ace RD-7800 Rear Derailer.

"Braking (Ultegra 6700 shifters with DA 7800 brakes):
The difference in pull ratio is noticeable. Braking is inferior with this combo compared to Ultegra ST-6600 with Dura Ace BR-7800 brake calipers. Still, braking performance is fine. Braking, however, is definitely more comfortable with the new shifters with the pivot being relocated higher up."

From a bike shop:
"we just had a bike in for a service today that had one 5600 lever paired with a 5700 brake. It was the first time I'd got to try this combination, and I immediately found out that the braking sucked on the test ride ... I was surprised by how pathetic and mushy it felt."
"So stick with components of the same series unless you have no choice."
"BTW, going the other way (e.g. new 6700 levers with old 6600 brakes) can be made to work OK - just setup the brake so that it doesn't hit the rim until the lever has moved a little more than normal, but still far from the bars, and you get reasonably decent power and modulation. The cable pull ratio actually changes during the lever sweep with the new levers, which I believe Shimano call Servo Wave technology, which is why it matters where the bite point of the brake is."

105 9-speed derailer replacement:
"It depends on whether or not you have indexed shifting. If you have indexed shifting only a 9-speed rear derailer will work regardless of claims."
"9 speed to 10-speed compatibility in rear derailers only applies for non-indexed shifting. [sources: Shimano Reps, a mechanical engineer]. Your only options are as follows: locate a true Shimano 105 9-speed derailer (RD-5500); purchase a 9-speed Tiagra rear derailer (includes 2010 and 2011 models); or upgrade to a 105 10-speed drivetrain."
"Since I have replaced the derailer with a true 9-speed Tiagra derailer (2011 RD-4500), the shifting problems are gone. I also measured the derailer movement / shift and it matches the cassette cog spacing."
For a triple, the Tiagra RD4500-GS 9-speed (2011) is the way to go.

Link to:

• Shimano Compatibility Charts
• Chart Magic
• Cycling Components Store
• Notes on Compatibility of Components
• Compatibility Tables
• Chainring Reference Table
• Hydraulic Brake Cable Compatibility Chart
• Guide to Finding IDs of your components