The HollowTech II 12-speed Ultegra chainset with integrated power meter offers an ideal balance of light weight and stiffness making it the perfect choice for both enthusiast and competitive riders. Accurately calibrated strain gauges are integrated inside the crank arm this provides a stable measurement system through rotation from both sides for extremely precise data. +/-2% accuracy of strain gauge measured power Bluetooth and ANT+ with wireless firmware update and data acquisition system Easily rechargeable integrated battery with fully waterproof reliable electric system HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and...
Best Price: £899.99 from Cyclestore