Shimano Ultegra Di2 ST-R8170 12 Speed Shifter + Flat Mount Caliper SW Only For all other computer mount

For all other computer mount inserts and spare parts please visitK Edge

without giving up puncture resistance

Protects against rust development and corrosion

lifetime guarantee

Closing link: Eagle™ PowerLock® PVD

Shimano Ultegra Di2 ST-R8170 12 Speed Shifter + Flat Mount Caliper SW Only For all other computer mountRoad riding has never been this much fun. The redesigned Shimano Ultegra Di2 ST R8170 12 Speed Shifter and Flat Mount Caliper has all new ergonomics, even more precise brake modulation and wireless electronic shifting, letting you focus on the next sprint, the next descent, or the next joke from your riding partner. Shimano's ULTEGRA ST R8170 brake levers bring enhanced modulation and control to every ride using Shimano's proven SERVO WAVE technology.