For use with English threaded bottom bracket shells with no ISCG'05 mount tabs
Adapter replaces one 2.5mm bottom bracket spacer and is held on by the drive side bottom bracket cup
Engineered for racers, the 425g ultra-lightweight carbon crank and 7075 aluminum spider deliver ±1% power accuracy and ultra-high stiffness. With 330-hour battery life, 4 key metrics, and Bluetooth/ANT+ connectivity, it’s built to dominate.
