Shimano FC-R8100 Ultegra172.5mm 52/36 W/Power Meter Crankset tyre and automatic firmware updates

and automatic firmware updates

With a vast selection of colors

Cordura® fabric at the saddle and knee panels provides durability with higher resistance to abrasion

through axles

The tall knobs punch through dust and loam to find traction

Shimano FC-R8100 Ultegra172.5mm 52/36 W/Power Meter Crankset tyre and automatic firmware updatesScientific training requires accurate measurement and user friendliness, and the new ULTEGRA R8100 power meter has both. Its dual sided measurement is accurate within 2. 0% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and BluetoothLE connectivity makes using and recording your workouts easier than ever. Integrated, waterproof, and rechargeable Li ion battery Up to