Apex 1, Rear derailleur, 11sp., Long cage, Black Mountain bikes Stress Tracking - Determine if

Stress Tracking - Determine if your day is calm

but at what cost

18mm profile

All of this resides in a dual control lever that employs the most advanced materials to offer lightweight and refined ergonomics that provide comfort and control for the most demanding conditions

Apex 1, Rear derailleur, 11sp., Long cage, Black Mountain bikes Stress Tracking - Determine ifLong cage 42t capacity CAGELOCK technology for easy wheel removal and installation Compatible with 10 speed and 11 speed SRAM 1x road systems Equipped with ROLLER BEARING CLUTCH X HORIZON design reduces shift force, eliminates ghost shifting and chain slap Large upper pulley offset automatically adjusts chain gap Steel cage SRAM Model ID: RD APX 1 A1