The TRSr SL Guide is engineered to take extreme punishment dealt by riders on enduro bikes

With an oversized design

Mounts in the big ring position of the cranks but is offset inward for perfect chainline

This tool works on the basis that  (≥ 0

Bottom bracket cups sold separately

SRAM GX 10 Speed Rear Derailleur - Mid Cage - 10 Speed netsuite-webdata-created The TRSr SL Guide isSRAM GX 10 Speed Rear Derailleur is designed with EXACT ACTUATION technology which provides an incredibly precise shift, ROLLER BEARING CLUTCH technology to ensure maximal drivetrain stability and CAGE LOCK technology which simplifies wheel removal and installation. It comes in three different cage lengths: short, medium and long. Choose a Short Cage if you're running 1 x 10 on cassette up to 11 36T Choose a Mid Cage for 1 x 10 with cassette up to 11