Feature: ?l tank with vast capacity, easily to refuel with super calibre, prevent overflowing and leaking. ?nt/rear umbrella gear differential and differential box with leak protection. ?h 13.8g super-light-weight flywheel, make the engine smaller in load ?ustable-bounce, make spring buffered. ?ferential with 5pcs of screw only, fixing/disasembling is easy. ? all-metal disc type brakes and super thick brake block. ?xuose 6061 aluminum chassis, thickness:2.5mm ?minum alloy in 6061, Anodic heavy-duty adrustor. ?iable shockproof spring ?ble sponge filter, dustproof result is better. 7.5mm oversize nitro vent, 56mm resonance.
Can be upgraded: ?bon fibre up-plate ?-metal oil pressure type shockproof device. ?e ten universal drive shaft. ?-metal exhaust pipe. ?l bearing for whole vehicle ?austing backward engine(need to match platform starter or bacilliform starter).