Slot.it Porsche 962 IMSA Wynns #10 Performance Slot Car (1:32 Scale) High Detail Racing Slot Car compatible with all 1:32 tracks V12/3 21,500 S Inline Motor provides superb torque, braking and very easy to drive 9 teeth pinion and 28 teeth inline gear Front Rims: 15.8 x 8.2 mm SIPT1159C1 Rear Rims: 16.5 x 8.2 mm SIPT1167C1