Features: 1) Fuel tank with vast capacity, easily to refuel with super calibre, prevent overflowing and leaking 2) Front / rear umbrella gear differential and differential box with leak protection 3) With 13.8g super-light-weight fly wheel, make the engine smaller in load 4) Adjustable-bounce, makes spring buffered 5) Differential with 5pcs of screw only, fixing / disasembling is easy 6) The all-metal disc type brakes and super thick asbestos brake block 7) Flexuose 6061 aluminum chassis, thickness: 2.5mm 8) Aluminum alloy in 6061, Anodic heavy-duty adrustor 9) Variable shockproof spring 10) Double sponge filter, dustproof result is better 11) 7.5mm oversize gas vent, 56mm resonance Technical data: 7) Engine: 18cxp 1) Length: 360mm 2) Width: 200mm 3) Height: 112mm 4) Wheelbase: 260mm 5) Round clearance: 4.5mm 6) Gear ratio: 5.69:1 (H), 7.85:1 (L) 7) Wheel dimensions: 65 x 26mm 8) Threat: 195mm Can be upgraded: 1) Carbon fibre up-plate 2) All-metal oil pressure type shockproof device 3) Byte ten universal drive shaft 4) All-metal exhaust pipe 5) Ball bearing for whole vehicle 6) Exhausting backward engine (need to match platform starter or bacilliform starter)