Set of two bearings Pre-lubricated Sealed to keep the crud out For 12 mm axles Set of 2 6201-2RS sealed wheel bearings for gas and electric dirt bikes, mini bikes, & scooters This bearing is also known as 6201RS Set of 2 6201-2RS sealed wheel bearings for gas and electric dirt bikes, mini bikes, scooters. This bearing is also known as 6201RS. Sealed scooter bearings of this size are commonly used in wheels, transmissions, gearboxes, and various other GY6/QMB139 engine components. The 6201-2RS series are single-row, deep groove ball bearings. Designated as light weight, they feature a 12 mm bore hole inner diameter. Please check your existing bearings for the series number, which is commonly found etched onto the side of the bearing. Specifications Diameter (Outer): 32 mm Diameter (Inner): 12 mm Width: 10 mm