Ultegra ST-8150 Di2 Dual Control Shift/Brake Lever for Rim Brakes - Left, 2x, Black chamois creams & skin care versatile helmet designed for both

versatile helmet designed for both tarmac and gravel rides

AirBoost air inlet at the front increases front vent surface area by 32%

These R8 rear derailleurs have composite and steel parts that weigh more but have the same durability and performance as R9 and R10

Matched by a premium welded upper

Radial laced

Ultegra ST-8150 Di2 Dual Control Shift/Brake Lever for Rim Brakes - Left, 2x, Black chamois creams & skin care versatile helmet designed for bothShimano Ultegra ST R8150 levers combine the accuracy of Shimano 12 speed Di2 shifting with the light weight of rim brakes. 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