Bearings 10mm 6900Z SETThe Black Carve 3 now features 10mm bearings as the standard for both its wheels and pulleys. This new standard provides improved performance and durability for riders. Additionally, the Black Carve 1, 2 and the Challenger also utilize the same 6900Z bearings in their pulleys. Bearing Size: 10mm x 22mm x 6mm Included in the Package: 10x 6900Z Bearings 4x Spacer 8x Washer However, the Black Carve 3 AT uses specialized pulley bearings. If you have any