Compared to the usual Super Reds, the difference is easy to explain: Instead of steel balls, balls made of silicon nitride are being used in the Bones Ceramic Super Reds Bearings. This is the best raw material for bearings because it is extremely heat resistant (up to 1200°C), light and durable and it has the best friction attributes. That’s what makes these bearings super fast and durable!

Features Ceramicballs made of heat-pressed silicon nitride premium steel thrust ring detachable cover for easy cleaning High-Speed-Inner-Ring out of nylon oiled with Bones Speed Cream best materials for best performance and durability Includes: 8 bearings, sticker, manual