Ultegra ST-R8150 Di2 Dual Control Shift/Brake Lever Set for Rim Brakes - Left and Right, 2x12-Speed, Black protective gear isn't useful in a 'cross

isn't useful in a 'cross race if it isn't compliant

It sports an integrated master cylinder in the ergonomically shaped lever body

Increases the positive spring volume by 1

Crafted with an Industry Nine 1/1 Hub for 6-bolt disc

and vibration

Ultegra ST-R8150 Di2 Dual Control Shift/Brake Lever Set for Rim Brakes - Left and Right, 2x12-Speed, Black protective gear isn't useful in a 'crossShimano 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