Shimano Dura-Ace Di2 ST-R9250 12 Speed Shifter Set (Rim Brake) Box Pack Sizes: 38cm

Sizes: 38cm

This is because Assioma is able to detect the actual instantaneous angular velocity of the pedal stroke

patent-pending design is based on the modularity of each crankset component

Don't stress about removing the valve core

Shimano Dura-Ace Di2 ST-R9250 12 Speed Shifter Set (Rim Brake) Box Pack Sizes: 38cmOur finest rim brake DUAL CONTROL LEVERS, DURA ACE ST R9250 offer 12 speed shifting with refined ergonomics and exceptionally light weight. DURA ACE ST R9250 DUAL CONTROL LEVERS are the ultimate in reliable performance thanks to a wired connection and the light weight of rim brakes. Refined ergonomics and advanced materials show the race pedigree of these levers. Features Quick and intuitive shifting Clearly defined click feeling with ergonomic shift