Shimano Ultegra Di2 ST-R8170 12 Speed Shifters Size:Right Always use a skewer or

Always use a skewer or axle nut to hold tool firmly in place during removal and installation

Includes Premium Microfibre Cloth for easy drying

the Schwalbe Pro One is one of the fastest and most versatile tubeless road tyres available

The perfect tool for keeping you watered while riding

EASIER SET-UP

Shimano Ultegra Di2 ST-R8170 12 Speed Shifters Size:Right Always use a skewer orWhen developing the Ultegra R8100 series, Shimano took a holistic, performance oriented approach, because great speed means great responsibility. Faster than ever, the Shimano Ultegra Di2 ST R8170 12 Speed Shifters deliver unparalleled control and comfort anytime, anywhere, whether in an everyman race, on the hunt for a personal best, or on a companionable ride. As with Dura Ace R9200, Hyperglide+ makes its way into Ultegra's components, and its Di2