Quality deep groove ball bearings from 101 Octane from European certified suppliers with the corresponding high standard of quality. These ball bearings are universally suitable depending on the design for various uses on scooters, motorcycles or quads / ATVs. For example, as wheel bearings, gear bearings, motor bearings or bearings for chassis and frame. Inside diameter (mm): 25 outer diameter (mm): 52 thickness / depth (mm): 15 clearance: C3 Layouts: open on both sides