ETHIC 12 STANDARD WHEEL BEARINGS X 4 PLUS SPACERSETHIC 12 STANDARD 6001 BEARINGS The 12mm Standard from Ethic is a huge advancement in the way scooter parts are sized. With a strong focus on supplying the strongest possible setup while still keeping the weight low, Ethic has come up with these bearings. These Bearings Can only be used wth Ethics 12 Standard products. This means 12mm axles, 30mm wide wheels and 6001 bearings. Notice: These bearings will not work in standard wheels. They must be 12mm