Shimano and SRAM repair guides, organized by model number
Find the model number on your derailleur, brake or crank. Each guide gives the adjustment steps, the torque values from the dealer manual, and the part numbers for pads, pulleys and cables.
| Component | Road and gravel | Mountain | City and trekking |
|---|---|---|---|
| Drivetrain | Shimano 105 R7100 12-speedRD-R7100, RD-R7150Shimano Tiagra 4700 10-speedRD-4700, ST-4700 | Shimano Deore M6100 12-speedRD-M6100-SGSSRAM GX Eagle (cable)RD-GX-1-B1, RD-GX-1-B2SRAM Eagle TransmissionRD-GX-E-B1, RD-X0-E-B1, RD-90-A1 | Shimano CUES (LINKGLIDE)RD-U4000, RD-U6000, RD-U6020 |
| Brakes | Shimano 105 R7100 hydraulic discBR-R7170, ST-R7120Shimano Tiagra 4700 rim brakeBR-4700 | Shimano MT200 hydraulic brakesBR-MT200, BL-MT200Shimano Deore XT M8100 brakesBR-M8100, BR-M8120SRAM DB8 brakesDB-DB8-A1, DB-DB8-B1 | Shimano CUES hydraulic discBR-U8000, BL-U8000 |
| Cranks and bottom brackets | Shimano Hollowtech II, roadFC-R7100, BB-RS500 | Shimano Hollowtech II, mountainFC-M6100, BB-MT501 | Look for an FC- number on the crank arm. Hollowtech II cranks are in the other columns. |
All guides and the model numbers they cover
Each guide starts by showing where the model number is printed, so you can check you have the right part before you start.
- Shimano Deore M6100 12-speed
Limit screws, B-tension, indexing, chain length and pulley replacement for the Deore 12-speed rear derailleur.
RD-M6100-SGS, SL-M6100, CS-M6100, CN-M6100
- Shimano MT200 hydraulic brakes
Pad replacement, lever setup and a mineral-oil bleed for the two-piston brake on many entry mountain bikes.
BR-MT200, BL-MT200, BL-MT201
- Shimano Deore XT M8100 brakes
Pads, bleed and lever reach for the XT two-piston and four-piston calipers.
BR-M8100, BR-M8120, BL-M8100
- Shimano 105 R7100 12-speed
Rear derailleur setup, shift cable replacement on ST-R7120, Di2 charging, and BR-R7170 pads and bleed.
RD-R7100, RD-R7150, ST-R7120, ST-R7170, BR-R7170, CS-R7101, CS-HG710
- Shimano Tiagra 4700 10-speed
Shift and brake cable replacement, derailleur adjustment and BR-4700 rim brake shoes for Tiagra 4700.
RD-4700-SS, RD-4700-GS, ST-4700, ST-4703, FD-4700, BR-4700
- Shimano CUES (LINKGLIDE)
Derailleur setup, chain length and cable replacement for Shimano's Linkglide drivetrain on city, trekking and entry mountain bikes.
RD-U4000, RD-U6000, RD-U8000, RD-U4020, RD-U6020, RD-U8020, SL-U6000, SL-U4000, BR-U8000
- Shimano Hollowtech II cranks and bottom brackets
Removing and installing two-piece Hollowtech II cranks and threaded bottom brackets, with cap and pinch bolt torque.
FC-M6100, SM-BB52, BB-MT501, FC-R7100, BB-RS500, BB-RS501
- SRAM Eagle Transmission
Full Mount installation on a UDH frame with the Setup Key, chain length, AXS pairing and MicroAdjust.
RD-XX-E-B1, RD-X0-E-B1, RD-GX-E-B1, RD-90-A1, RD-70-A1, T-Type, UDH
- SRAM GX Eagle (cable)
Chain gap, limit screws, indexing and cable replacement for the cable-operated 12-speed GX Eagle.
RD-GX-1-B1, RD-GX-1-B2, SL-GX-1-A2, CS-XG-1275
- SRAM DB8 brakes
Pad replacement, caliper alignment and a mineral-oil bleed for SRAM's DB8.
DB-DB8-A1, DB-DB8-B1 (DB8 Stealth)
Common problems and jobs
Not sure which part is causing the problem? Start here. Each page links to the guide for your model.
- Rear derailleur won't shift cleanly
Noisy, slow or skipped shifts traced to cable tension, limit screws, B-tension or a bent hanger, with the fix for each groupset.
- Brake lever feels spongy or pulls to the bar
When a mineral-oil brake needs bleeding, and the Shimano and SRAM methods side by side.
- Which disc brake pads fit, and how to swap them
Pad shapes by caliper model, wear limits and the bedding-in that new pads need.
- Setting chain length on a 12-speed bike
Shimano's and SRAM's methods are different. Use the one for your derailleur.
Your groupset isn't listed?
Send us the model number printed on the part (for example RD-R8150 or BR-M6120) and what you are trying to fix. We use requests to decide which parts to add next.