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Jasil 2-piece primary gear up kit for scooters using a Chinese GY6 50cc 4-stroke engine.
This 17/49 ratio will help to increase your top speed and stop your tuned scooter from over revving.
Please note that the centre of the larger gear is splined and that the intermediate gear guide pinions are 12mm.
*Made in Portugal.
Airsal 6011322
As soon as we get new stock for Secondary Gear Up - Chinese GY6 50cc, we'll send you an email.
