The radical look and feel of X-SYNC 2 Eagle chainrings is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings

2 bolt is ideal for bottle cages/cage mounts

and compact spare tube

but can be powered by a separately sold battery Modes

Pros: Excellent power and modulation for the price

Shimano XTR CS-M9101 12 Speed Cassette - Shimano Micro Spline - 10-51T - 12 Speed Needs Images The radical look and feelShimano's flagship XTR groupset brings you the highest standards in performance, weight and dependability using cutting edge design, materials, and manufacturing processes. The CS M9101 12 XTR cassette uses Shimano's Aluminium Beam Spider ultralight chassis to carry 3 large precision aluminium gears, 5 titanium gears and 4 steel gears for the perfect balance of weight, strength and durability. Shimano's proven Hyperglide+ tooth profile is said to