For MTB gearing configurations
Long cage
Weight: 197 g.
8 or 9-spd compatible

With a potent mix of high-grade materials that includes a forged aluminum body, titanium spring, and reinforced carbon composite, the X.0 is a pro-ready rear derailleur that's lighter, stiffer, smoother and flat-out better looking than anything out there. Compatible with Sram 1:1 shifters. Alloy cage. Selection may be limited.