Length 145.0mm Width 68.0mm Height 53.0mm Wheelbase 90.0mmM Tread F : 56.5mm R : 56.5mm Chassis MA-020-N Front Wheel Offset Narrow 0.0 Rear Wheel Offset Narrow 0.0 Weight 185g R/C System Syncro KT-531P Kit Content R / C unit built-in complete chassis Painted and marked complete body yncro KT-531P transmitter Mini pylon Pinion gear (15T, 17T, 19T, 21T) Spur gear (27T, 29T, 31T) Spare nut Wheel wrench Pinion removal tool Requirement to Run Required for Operation AAA-size alkaline batteries x 4 or Ni-MH batteries x 4 for chassis. AAA-size alkaline batteries x 4 for transmitter