Products

Complete cylinder head for 50cc 139QMB / QMA engines. Unlike many other available cylinder heads, this is a complete head. That means: valves, valv...

Complete cylinder head for 50cc 139QMB / QMA engines. Unlike many other available cylinder heads, this is a complete head. That means: valves, valv...

Original valve cover for Chinese-built GY6 4-stroke 139QMB/QMA engines. The cover is dispatched without an SLS connection [secondary air system]. T...

Complete valve cover with connector for 50cc GY6 and Kymco 4-stroke engines. The valve cover is ready to install and supplied as shown. The valve c...

Cylinder head gasket [50cc = 39mm] - GY6 50cc

Common problems with stock cylinder heads on the Chinese 4-stroke engines are generally known to be expensive and involve high costs. Chinese repla...

SLS [secondary air system] gasket - 139QMB/A

50cc Cylinder kit for all 50cc 4 stroke Chinese scooters which use the GY6 139QMB/QMA engines. An ideal low cost replacement kit for those worn or ...

72cc (47mm) kit for all 50cc 4 stroke Chinese scooters which use the GY6 139QMA/QMB engines and Kymco 4T. A low cost performance upgrade to stock 5...

81.3cc High performance aluminium cylinder kit from Airsal for 50cc 139QM GY6 Engines. Unlike cast iron cylinders, the aluminium cylinder offers mu...

Malossi BigBore cylinder with 52mm bore in aluminium with hard chromed liner. The bore = 87.9cc capacity. Original head may be retained according t...

With the latest V.2 Cylinder kit series from NARAKU, we can offer a more advanced product. The piston has 2 additional CNC-machined oil grooves in ...

With the latest V.2 Cylinder kit series from NARAKU, we can offer a more advanced product. As a 4 stroke cylinder is effectively just a hole, the e...

With the latest V.2 Cylinder kit series from NARAKU, we can offer a more advanced product. The bore has been taken out to 52.4mm. The external diam...

Low-cost standard brake disc in original quality. This brake disc has 3 mounting points and a diameter of 180mm. For front and rear disc brakes wit...

Malossi High Tech drive belt for racing or tuned engines. Can be used as original replacement, as the price is lower than on the original item. Spe...

A low-cost and good quality, standard replacement belt from NARAKU. The grip provides good acceleration, low loss of traction and optimal power tra...

NARAKU high-quality belts. High grip combined with good flex minimise friction losses and transmit the engines power to the road. One of the best b...

Speed Belt by Polini. This v-belt features an aramid weave that makes it elastic and highly durable. Without doubt, one of the best v-belts in our ...

Standard replacement drive belt suitable for vehicles with 10” wheels. Dimensions: 669-18-30

This Variator sleeve replaces the original factory fitted sleeve and collar. This lifts the restricted power. The scooter will be capable of approx...

Gearbox input shaft for GY6 139QMB/QMA. This is where the clutch and converter pack are mounted.

SLS [secondary air system] gasket - 139QMB/A

Starter motor, suitable for all Chinese-built 4-stroke engines. This item can be used without a problem, even where the originally fitted item has ...

This bearing set contains all the relevant bearings found within the engine. A complete kit, at a low price. Crank main bearings not included. Not ...

Right-hand engine case, connects to the right-hand crankcase. Suitable for GY6 50cc 139QMB/QMA engines.

Complete replacement engine for Chinese-built 4-stroke scooters with 10” wheels (3.5x10 / 3.00x10 / 90/90-10 etc.). As a result of the time saved...

Complete replacement engine for Chinese-built 4-stroke scooters with 10” wheels (3.5x10 / 3.00x10 / 90/90-10 etc.). As a result of the time saved...