XTR BL-M9100 Disc rear Brake

XTR BL-M9100 DISC BRAKE When Shimano launched its all-new 12-speed groupset, we would be lying if we said we weren't eager to see every little piece of the puzzle. Sure, we're excited about the cassette, and all-new derailleur system, but we also wanted to see what race-ready improvements came to other components, like the XTR BLM-9100 Disc Brakes. Aligning with the XTR 9000 Race of years past, the M9100 Disc Brakes bring a clean, minimalist approach to your cockpit, both in its sleek, frill-free aesthetic, and in its featherweight class that lands in at 26-grams lighter than its predecessor — all without reducing XTR's next-level stopping power. Shimano made some major changes when it comes to the cockpit side of this brakeset, both in the construction, and positioning of the brake levers. They use a new magnesium master  cylinder to shed grams, and feature I-Spec EV that moves the clamp inward from the previous I-SPEC design so that the new master cylinder contacts the bar. This extr