Shimano CS-M9001 XTR 11-speed cassette 11 - 40T

Top of the range Shimano 11 speed XTR mountain bike cassette

Four Carbon Fibre carriers and 6 titanium sprockets make this Shimano's lightest 11-speed Dyna-Sys MTB cassette

Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load

11-40T wide ratio gearing allows a more efficient use of energy through finer cadence control - also allows a single front chain ring to give you enough gears and move to a 1x11 configuration (or go with 2 x 11)

Four separate lightweight carbon fibre carriers reduce weight and increase stiffness giving more precise faster shifts

The 35/31/27/24/21/19T sprockets are all made from Titanium to reduce weight and increase durability and prevent rust

Sprockets are cut away extensively and drilled to further reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosion

Alloy cassette lockring

For use with 11-speed SIL-TEC chains