Features: 1.Designed to fit for KAYO BSE Bosuer Xmotos Apollo Orion Rusi SSR SDG GPX GMX Pitsterpro Mobster thumpstar YX 140cc Dirt Pit Bikes. 2.It is made of hard aluminum alloy, which is resistant to oil and corrosion, and has a longer service life. 3.Perfect replacement parts, good replacement or repair of the original car's damaged and worn right crankcase of the engine, better protection for the engine. 4.Has undergone extensive quality and safety testing to ensure reliable performance. 5.Engineered to provide the same fit and function of the original one on specific vehicle years, makes and models. Specification: Item Type: Engine Right Side Crank Case_x000D_ Material: Aluminium Alloy_x000D_ Fitment:_x000D_ Fit for YINXIANG 140cc Horizontal Kick Starter Engine 56mm Bore (1P56FMJ W063)_x000D_ _x000D_ Fit for KAYO BSE Bosuer Xmotos Apollo Orion Rusi SSR SDG GPX GMX Pitsterpro Mobster thumpstar YX 140cc Dirt Pit Bikes