The Shimano XTR CS-M9001 11-Speed Cassette 11-40T is a premium lightweight mountain bike cassette designed for riders who demand fast, precise shifting and elite-level drivetrain performance. Built as part of Shimano’s flagship XTR MTB groupset, this 11-speed cassette combines low weight, strength and smooth gear transitions for cross-country racing, trail riding and high-performance mountain biking.
- Premium Shimano XTR 11-speed MTB cassette
- Wide-range 11-40T gearing for efficient climbing and cadence control
- Shimano Dyna-Sys 11-speed mountain bike drivetrain performance
- Hyperglide sprockets for crisp, smooth shifting under load
- Four lightweight carbon fibre carriers reduce weight and increase stiffness
- Six titanium sprockets for low weight and durability
- Cut-away and drilled sprockets reduce weight without losing rigidity
- Nickel-plated finish for corrosion resistance and long-lasting performance
- Alloy cassette lockring included
- Designed for use with 11-speed Shimano SIL-TEC chains
- Ideal for XC racing, trail riding and performance mountain biking
Engineered with Shimano Dyna-Sys 11-speed technology, the CS-M9001 cassette provides a wide 11-40T gear range that helps riders maintain efficient cadence control across climbs, descents and fast technical terrain. The wide-ratio setup gives you the low gears needed for steep climbs while still offering close enough steps for smooth pedalling rhythm on rolling trails.
Shimano’s Hyperglide sprockets feature computer-designed tooth profiles and contoured shift gates, delivering crisp, smooth and reliable gear changes, even under load. Four lightweight carbon fibre sprocket carriers reduce weight while increasing stiffness, helping improve shift speed and drivetrain precision.
To achieve exceptional performance, six sprockets are made from titanium to reduce weight while maintaining excellent durability. The sprockets are also extensively cut away and drilled to minimise weight without compromising rigidity. A hard-wearing nickel-plated finish provides corrosion resistance, while the alloy cassette lockring completes the lightweight construction.
Designed for use with 11-speed Shimano SIL-TEC chains, the Shimano XTR CS-M9001 11-40T cassette is the ideal choice for riders looking to upgrade or replace their MTB drivetrain with a lightweight, high-performance XTR cassette.