Shimano Dura-Ace BR-R9270 Hydraulic Disc Brake Model:Rear This is a high quality

This is a high quality alloy rim that is tougher than most with added protection at the bead-walls for impact resistance and reduced sidewall cuts

Efficient and ergonomic overlapping design optimized for high pressure applications

Up to 230 compatible       Mud Guard Mount Optional FOX 36/38 Mud Guard with sturdy 4-point direct-mount attachment       Air Spring FLOAT EVOL       Steerer 1

RD Spring Type - Shadow Plus

Shimano Dura-Ace BR-R9270 Hydraulic Disc Brake Model:Rear This is a high qualityWith an all new design, DURA ACE BR R9270 hydraulic calipers are the most compact yet. MONO BODY construction ensures light weight and rigidity, proving that good things can come in small packages. With an all new MONO BODY construction design, high performance braking has reached a new peak. The BR R9270 caliper drops weight while also providing increased pad clearance, ensuring a quieter ride. Lastly, a new bleeding process makes maintenance easier