Includes: (everything you need to replace your wheel & pulley bearings)Exway Wave, Exway Flex, Exway X1 Pro, Exway X1 Max:- Eight standard wheel bearings (Size: 608RS)- Four standard pulley bearings (Size: x2 6901RS and x2 6902RS) Exway Atlas 2WD Street Set-Up:- Eight standard wheel bearings (Size: 608RS)- Four standard pulley bearings (Size: x2 6901RS and x2 6902RS) Exway Atlas 4WD Street Set-Up:- Eight standard wheel bearings (Size: 608RS)- Eight standard pulley bearings (Size: x4 6901RS and x4 6902RS) Exway Atlas 2WD All Terrain Set-Up:- Eight standard wheel bearings (Size: 608RS)- Four standard pulley bearings (Size: x2 6901RS and x2 6202RS) Exway Atlas 4WD All Terrain Set-Up:- Eight standard wheel bearings (Size: 608RS)- Eight standard pulley bearings (Size: x4 6901RS and x4 6202RS) Exway Atlas Pro 2WD Street Set-Up:- Eight standard wheel bearings (Size: 608RS)- Four standard pulley bearings (Size: x2 6901RS and x2 6902RS) Exway Atlas Pro 4WD Street Set-Up:- Eight standard wheel bearings (Size: 608RS)- Eight standard pulley bearings (Size: x4 6901RS and x4 6902RS) Exway Atlas Pro 2WD All Terrain Set-Up:- Eight standard wheel bearings (Size: 608RS)- Four standard pulley bearings (Size: x2 6901RS and x2 6002RS) Exway Atlas Pro 4WD All Terrain Set-Up:- Eight standard wheel bearings (Size: 608RS)- Eight standard pulley bearings (Size: x4 6901RS and x4 6002RS) After testing numerous different types of metal bearings, we finally found a bearing that is not only affordable but also extremely durable. Our Standard Exway Bearings feature high quality chromium steel balls, a removable rubber shield that provides ease of access for cleaning as well as water resistance, and come pre-lubricated with Hyperdrive Bearing Lubricant. Ride the best. Ride HyperDrive.