Established in 1992, Sumai Bicycle Co.,Ltd. is one of the biggest China pocket bike parts manufacturer and wholesaler. We've gotten the WMI (World Manufacturer Identification) since 2005. Our company has perfect quality management systems with ISO9001 international quality authentication in 2002 and pays great attention to new product development. We have high-quality staff at design, oem pocket bike parts development and production fields, and have introduced in qualified personnel from foreign bicycle enterprise. Most of our products have been approved with CE certificate, and some approved with EEC, EPA and CARB.

Pocket bikes, dirt bike. Engine / motor (2 or 4 strokes - 50cc, 110cc, 70cc, etc ), cylinder head, pull start. Cylinder for air cooled and water - cooled, piston, piston ring. Carburetor, air filter, V - stack, choke set, reeds. Sprocket (rear and front: 6, 8, 7, 9T or ), pinion gear, chain (25H, T8F or ). Muffler, exhaust. Scooter tire, tube. DC motor, bearings. Scooter battery, switch key, ignition coil. Spark plug,
Adjustable racing clutch. Cable, oil pipe, axle adjuster. Brake caliper, throttle cable, clutch drum, brake cable, foot rest, brake disc, handle grip, so many parts. We stock the most complete line of stock and performance parts for pocket bikes.scooter, motocross, pitbike, dirt bike, pocketbike parts, goped, parts, dirtbike,HP engines and parts, power,, yzf, rmz, moto x, freestyle, dirt. Choose your model.

For over 7 years ZUMA® customers have enjoyed the peace of mind of knowing that when they buy a Quad or Motorcycle, that the parts are available for all models past or present; so keep that in mind before you purchase that bargain bike that could end up as an overpriced door stop.... We have access to all spares for every ZUMA® product we sell, if you purchase a ZUMA® product you won't be let down. BUT if you have been unfortunate enough to have purchased a Chinese bike elsewhere and can't get parts we will do what we can to get you out of trouble. we will endeavor to fill your request as soon as we can. SHAVED 4 TRANSFER ALUMINUM CYLINDER, BORED AND MATCHED TO 49cc PISTON. ALUMINUM RACE DOME WITH "0" RING. LIGHTENED ALUMINUM PISTON WITH MACHINED OVAL BOOST PORT. COMPLETE RE BUILDERS GASKET SET. QUALITY NGK SPARK PLUG. OUR NEW BILLET MACHINED ALUMINUM HEAD.

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