Retail Price: $299.99
Current Price: $299.99
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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 the all new I-Spec EV that moves the clamp inward from previous design, so that the new master cylinder contacts the bar. This extra point of contact boosts rigidity, improving braking power for better control when you're in over your head coming into a hairpin corner. In addition to the new I-Spec configuration, Shimano employs a new brake lever shape with ergonomics in mind, to comfortably allow dual-finger braking for seamless operation. Shimano claims that the new brake design offers a whopping 10% increase in stiffness above M9000, even under high temperature conditions. Holding down the fort in the back is the sleek, 2-piston caliper. It offers higher braking forced, with reduced input force, massively speeding the linear response and braking power, reducing lag time by a claimed 30% compared to its predecessor. It features a redesigned high-rigidity brake hose, and 1-piece aluminum caliper to keep things minimalist, while maintaining stopping as its top priority. This sleek 2-piston caliper is ideal for cross-country racing, as it minimizes weight, thanks to its one-piece aluminum caliper, and straight threaded fitting. Hit...

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