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 Description 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