If you're looking for a reliable way to secure your eBike wheels, the PurYupearl E-Bike Electric Hub Motor Axle is just what you need. This set comes with everything to make your ride smoother and safer, featuring a sturdy M12 front lock nut, lock washer, and nut cover. These components fit perfectly with 12mm shaft bike hubs, ensuring a tight fit that keeps your wheels in place, even on bumpy rides. It's perfect for both casual riders and those who take their electric biking seriously.