Shimano Ultegra Di2 ST-R8150 12 Speed Shifters (Rim Brake) Size:L+R Set when there is no space

when there is no space for ratcheting

or 20mmDiameter: choose

Making more than 15x the power of Velcro®

giving riders a stable platform to put maximum power into every pedal stroke

Shimano Ultegra Di2 ST-R8150 12 Speed Shifters (Rim Brake) Size:L+R Set when there is no spaceShimano Ultegra ST R8150 levers combine the accuracy of Shimano 12 speed Di2 shifting with the light weight of rim brakes Features Quick and intuitive shifting Clearly defined click feeling with ergonomic shifting lever Better bike control and confidence in race conditions Hood shape and texture optimize grip and brake power transmission Specifications Double or Triple: Double Includes Brake: No (sold separately) Front Der Shifter Compatibility: