Shimano XTR RD-M9100 Rear Derailleur Shadow+ 12 Speed Long Cage 51T Max GSRD A dirty bicycle drivetrain causes

A dirty bicycle drivetrain causes poor shifting and unnecessary wear to expensive parts

Wide contact platform

The lightweight Galfer Wave brake discs are made of high-quality

allowing usage for smaller frames

this Fly Cage Poly screams style

Shimano XTR RD-M9100 Rear Derailleur Shadow+ 12 Speed Long Cage 51T Max GSRD A dirty bicycle drivetrain causesTight and precise. Designed to withstand full force pedalling on the roughest trails, while shifting gears as smooth as ever. Shimano's best chain stability yet. Features Shadow RD+ for optimal chain retention Decreased rear derailleur tension at low gear position, to prevent high chain tension Added bumper at rear derailleur pulley cage Optimized for new drive system Specifications Cage Length: choose; GS Medium, or SGS Long Total Capacity: 35T