Shimano Dura Ace CS R9100 11 Speed Cassette - 12-25T Wearable Lights Power Bank : 850 mAh

Power Bank : 850 mAh

and stows in its internal pocket

with technology to keep your chain perfectly in place and give smooth and reliable shifting anytime

TPR wrist strap for adjustable and secure fit

Specifically designed to work with XTR M9100 12-speed 1x drivetrains

Shimano Dura Ace CS R9100 11 Speed Cassette - 12-25T Wearable Lights Power Bank : 850 mAhShimano Dura Ace CS R9100 11 Speed Cassette 12 25T The Shimano Dura Ace CS R9100 cassette is engineered for riders who prioritise tight gearing, instantaneous shifting, and absolute drivetrain efficiency. Designed for high speed road racing and fast paced riding, this close ratio cassette allows finer cadence control, helping maintain power output and rhythm during sustained efforts and aggressive accelerations. Built around Shimano Hyperglide EV