Redesigned transmission case Reinforced for added strength and rigidity Low-CG design for improved handling Ultra-rigid wheelie bar mount 3.2 mm Aluminum Motor Plate Increases structural rigidity Improves heat dissipation Compatible with fixed gear mesh system Hardened-steel top shaft Press-fit top gear for superior strength and durability Sealed differential Hardened-steel beveled gears Tunable with silicone differential oil Easy access differential Simple removal for tuning and maintenance