Products

Tuned engines generally develop their power higher in the rev range and the engine can lose performance at lower revs, meaning poor drive. To comba...

Top Racing offers you a cheap but very good clutch spring kit in three different weights. for original 3 shoe clutch and 107mm Top - Racing clutche...

Low-cost, reinforced clutch spring set. The clutch engages approx. 1500-2000rpm later, allowing the engine to put more power down under acceleratio...

Top quality racing clutch. Very sturdy design. For all originals and lightly tuned engines. Cheap alternative to replacing the original clutch.

Completely pre-assembled hear converter unit comprising: torque driver, counter pressure springs and clutch. Often the cause of torn belts. Standar...

Naraku Sports Contra Spring V.2 +1000rpm The current version of the Naraku counter pressure spring uses a modified alloy spring providing better re...

Naraku Sports Contra Spring V.2 +1500rpm The current version of the Naraku counter pressure spring uses a modified alloy spring providing better re...

Naraku Sports Contra Spring V.2 +2000RPM The current version of the Naraku counter pressure spring uses a modified alloy spring providing better re...

Fan Wheel for air cooling. This item sits on the alternator rotor.

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

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

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

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...

Right-hand crankcase gasket - GY6 50cc

Mid-crankcase gasket. This gasket seals the left and right hand sides together. Required when changing the crank or completely splitting the cases.

Cylinder base gasket - GY6 50cc

Complete cylinder gasket set for all 39mm Naraku or original 4-stroke cylinder sets. Kit contains all necessary gaskets from the cylinder base up a...

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

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

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...

Malossi Special Belt is a high quality and low-slip belt for use on standard and tuned sports engines. Good grip means performance and minimal slip...

Cost-effective replacement belt for everyday use. Good flex and outstanding grip and can easily be used in lightly tuned engines. Size: 724-17.5

Kevlar Maxi belt from Polini. The most durable v-belt Polini offers has additional aramid fibre inlays that make this belt extremely resistant to t...

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 ...

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 ...