The Rampage rear wheel rolls on a four-bearing sealed freecoaster hub with 14mm chromoly axle. It's hand-laced to a 36-hole Rampage double-wall rim, and features a 9T chromoly driver with 3-pawl system. - Axle: 14mm chromoly (heat-treated) - Driver: 1-pc chromoly RHD or LHD - Hardware: Steel(17mm wheel nuts) - Hub shell bearings: 6002 (x1) & 7902 (x1) verify bearing number on side of rubber seal - Drilling: 36H - Weight: 46.4-ounces