Naraku gearbox secondary Naraku Racing 15/37 +20% for GY6 125 150cc 152/157QMI - NK901.23

Who hasn't experienced it? Performance tuning with big bore cylinders has been carried out and the scooter accelerates significantly, but it doesn't get much faster. As a rule, it stops at around 90-100 km/h. Tasuching the variator still helps, but the top speed is still not enough. The reason for this is that the transmission ratio of the original gearbox is too low. The gear ratio is too short for the relatively weak original engine to achieve the required power. Naraku offers a 20% longer gearbox, which achieves the optimum gear ratio extension in coordination with the power development of 4-stroke engines.
With the Naraku NK901.23 gearbox, your scooter now achieves a higher top speed without sacrificing acceleration.

TECHNICAL DATA:
- Naraku secondary gearbox for scooters with 125/150cc GY6 152/157QMI engine and tuning cylinder kit
- Gear ratio increased by 20% to 15/37 for more top speed (compared to the original gearbox)
- High quality product
- great performance and good durability
- Simply replace and you're done. No special tools required
- Fits all 125 and 150cc GY6 engines

SCOPE OF DELIVERY:
Naraku secondary gearbox 15/37 +20% - NK901.23