Baotian

Timing chain tensioner guide for GY6 50cc engines 139QMB/QMA.

Timing chain guide for GY6 50cc engines 139QMB/QMA. This guide sits opposite the chain tensioner and is positioned between the cylinder and the cyl...

Original brake lever for rear brake discs (left-hand brake lever). Suitable for all old rear drum brake designs with integrated switch element. For...

Original brake lever for rear brake discs (left-hand brake lever). Suitable for all old rear drum brake designs with integrated switch element. For...

Oil pump drive gear with 33 teeth for Chinese-built 4-stroke GY6 50cc 139QMB/QMA engines. This item fits the 16 tooth crankshaft.

139QMB/QMA engines currently have 2 crank variations factory-fitted. The differences are solely in the oil pump drive gear. The crank can be kitted...

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

Gearbox output shaft for GY6 139QMB/QMA engines. This is where the rear wheel is mounted. Suitable for all rear drum brake models.

Complete rocker mechanism including shaft and valve adjuster for Chinese-built 4-stroke 139QMB/QMA 50cc cylinder heads. Changing the complete unit ...

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 engine gasket set for all Chinese-built 4-stroke GY6 139QMB/QMA scooters with 12” wheels and short engine block; v-belt length 729mm, cr...

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

Tecno Streetline exhaust for 4-stroke scooters. The Portuguese manufacturer Tecno has adapted the internals to meet the needs of a small 4-stroke e...

Leovince`s 4-stroke exhaust system features a motocross-style silencer with a coarse but not too loud 4-stroke sound. The exhaust, as usual is very...

Polini Speed Clutch Bell. Better design than most original clutches and thus an ideal replacement for died down or misshapen originals. The improve...

Good quality replacement variator without performance enhancement from NARAKU. Set of weights (16x13 5.5 g) is supplied. Can be used with restricte...

2008 ZZIP maintenance manual for 4-strokes that follows a similar layout to the 2-stroke alternative. From Stefan Zipperer Kymco 50 / 125cc 4-strok...

Naraku Sports Contra Spring V.2 2 Pack, +1000, +1500 rpm The current version of the Naraku counter pressure spring uses a modified alloy spring pro...

Complete Naraku torque driver. Torque drivers, counter pressure springs and clutch. No need to disassemble the original. No more over-stressing the...

Crankcase breather system by Naraku. A Simple, yet effective design by Naraku suitable for all 139QMB/QMA (GY6 50) Kymco and GY6 125- 180cc 4- stro...

Naraku performance fan for tuned engines. Also for untuned engines. For AC engines, we recommend an additional air scoop. Please pay attention to t...

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 ...

The most low-cost aftermarket clutch we offer. Even tuned engines can have issues with the clutch. Glazed plates, bad starting or vibrations are in...

Replacement clutch bell for 107mm clutches on 50cc Piaggio, Peugeot, Kymco, Sym along with all4 stroke scooters with the 139QMB engines. Very well ...