SHIMANO DEORE CS-M5100 11-SPEED CASSETTE 11/42T Bike-Product 8 mm handlebar compatibility with

8 mm handlebar compatibility with your Knock Block system

Seamless engineered knit construction

The Knock Block system protects the frame from impacts by fork and handlebars by eliminating over-rotation of bars

Features Kryptonite Evolution Messenger Mini+ (incl

Semi-open blocks ensure optimal self-cleaning properties with low rolling resistance

SHIMANO DEORE CS-M5100 11-SPEED CASSETTE 11/42T Bike-Product 8 mm handlebar compatibility withThe Shimano CS M5100 is the suitable cassette for the new DEORE 11 speed group. The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG cassette sprocket, which was developed for 11 speed system, underwent comprehensive optimization to achieve super highly efficient shifting. Features Ride