RC 1/10 On Road Car Wheel Rims w/ Y Type Wheel Spokes Aluminum Alloy Gold Pack of 4 Suitable for RC 1: 10 Racing car and On Road car Wheel Outer Diameter: 52 mm / 2.05" Wheel Inner Diameter: 46mm / 1.81" Wheel Drive Hex: 12 mm / 0.47" Material: Aluminum alloy