While retaining elements of the excellent MR-03 layout, the new MR-04EVO2 chassis achieves significant performance improvements with changes to the front suspension and a lower C of G that work in synergy with a sensored brushless motor. Both narrow and wide tread settings are available by changing the lower and upper plates on the front as well as the steering tie rod. Adjustable wheelbase allows chassis setting according to body type. Length 124.5mm Width 7276mm Height 31mm Motor Mount MM Wheelbase 98.0mm (LL) TreadFR63.565.0mm61.565.0mm Tires (F/R) 258.5mm (sold separately)/258.511mm (sold separately) Gear Ratio 7.36.35.54.91 Weight 135.5g Body / tires / wheels not included. Motor Kyosho SPEED HOUSE XSPEED 85 (KV8500)