SHIMANO ULTEGRA CS-R8100 12-SPEED CASSETTE 11/30T Size:11/30T from MY2015

from MY2015

mounting hardware

The biodynamic structure of the foam guarantees reduced weight and long lasting good looks

Model: SM-BH90-SBM-A

Expanding mechanism grabs the hub cap evenly from the inside

SHIMANO ULTEGRA CS-R8100 12-SPEED CASSETTE 11/30T Size:11/30T from MY2015Great speed means great responsibility. That's why, faced with the task of making the new ULTEGRA groupset even faster, Shimano decided to take a holistic and 100% performance focused approach. Shimano's new 12 speed road groupset delivers unparalleled control and comfort anytime, anywhere whether you're competing in an amateur race, chasing your personal best, or out for a social ride. That is "Science of Speed". And it's what sets SHIMANO apart from