WILIER EBIKE X35 MAGNET LOCK NUT

The Wilier E-Bike Mahle Ebikemotion X35 Magnet Lock Nut is a specialized, proprietary piece of rear-axle hardware engineered specifically for Wilier’s e-road and e-gravel bikes using the Mahle X35 motor system. Unlike a standard axle nut, this component houses a built-in magnet that communicates directly with your bike’s internal speed and cadence sensors.