Trek Rail brake pad compatibility guide
Choose the exact build and year. Every result shows the source-confirmed front and rear brake before opening the matching Gorilla Brakes collection.
Compatibility last checked 22 August 2026. Every fitment links to its published specification source.
Official Trek product imageJump to model year
Electric mountain bike
Fitted front and rear: SRAM DB 8 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM CODE Bronze 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano XT M8120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano XTR M9120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM Code Silver 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Electric mountain bike
Fitted front and rear: Shimano XTR M9120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Electric mountain bike
Fitted front and rear: Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM Code R 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano XT M8120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano XTR M9120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM Code RSC hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Electric mountain bike
Fitted front and rear: Tektro HD-M745 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Tektro HD-M745 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Tektro HD-M745 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM Code R 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano SLX M7120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM Code RSC hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: SRAM Code RSC hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Fitted front and rear: Shimano XTR M9120 4-piston hydraulic disc. This opens the verified Gorilla Brakes collection so you can choose your compound.
Trek Rail brake pad questions
The correct pad depends on the exact Rail build and model year. Select the complete bike above and confirm the marking printed on the fitted caliper before ordering.
No. Trek specifications vary by build, year and market, and the front and rear brakes can also differ. Gorilla Brain keeps each source-confirmed build separate.
The verified collection contains the Gorilla Brakes compounds available for that pad shape, allowing you to choose the compound that suits your riding and conditions.
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