NEW Shimano XTR/Dura-Ace RT-CL900 Disc Brake Rotor with Lockring - CenterLock, Silver Size:140mm (RT-CL900 SS) Open tread and lightweight construction

Open tread and lightweight construction

and electrolytes athletes need after tough endurance workouts

Weighing just 66g

Drive Unit: Bosch Performance Line Cargo (Smart System) with Purion 200 Remote

NEW Shimano XTR/Dura-Ace RT-CL900 Disc Brake Rotor with Lockring - CenterLock, Silver Size:140mm (RT-CL900 SS) Open tread and lightweight constructionThe Shimano RT CL900 disc brake rotor provides quiet and consistent braking control for any terrain. Consistent braking performance on any long, steep descent thanks to excellent heat dissipation Robust arm shape for quiet operation without sacrificing weight or heat dissipation Heat dissipation paint boosts performance Includes lock ring with internal serration