MicroSHIFT Kassette Centos - 11 speed, 11-28TH Series 11 Speed Cassette 11 28 H Series cassettes are designed to deliver maximum durability. With all steel construction and multi stage heat treatment, these cassettes will stand up to whatever you can throw at them, whether its high torque E bike usage or just good old fashioned mashing. Features. Compatible with road 11 speed HG cassette hub bodies Continuosly molded cogs achieve a high standard of durability and straightness Group Centos Speed