12 Vehicle Length in mm 60 1525 13 Vehicle Width in mm 29.5 750 14 Vehicle Width With Rail Guide Rollers in mm 35 890 Rail Guide Wheel Height (Top) in mm 2.5 65 Rail Guide Wheel Diameter in mm 2.5 65 Rail Guide Wheel Thickness in mm 1 25 15 Rear Drive Wheels (d x w) Poly in mm (2) 12 x 2.5 (2) 305 x 65 wide