Pinasco Primary Gear 16 teeth (+ 10km/h) Vespa PK50 / Special
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This product is no longer being manufactured, so unfortunately we can no longer offer it.
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Description
Andrea Pinasco was one of the first mechanics who successfully tried to improve the performance of classic Vespa scooters, and his company Pinasco consequently became one of the household names for Vespa tuning. Carburetors, cylinders, exhausts, crankshafts - everything to make your vintage Vespa run better and faster.
The Pinasco Primary Gear 16 teeth Vespa PK50 / Special (+ 10 km/h) will increase top speed by 10 km/h, without any additional engine modification - not bad! It is easy to mount, simply replace the original gear with this one.
- 16 teeth (helical)
- increased gear ratio - higher top speed
Transmission gears
The gears of the transmission must be in excellent condition so that the gears can shift smoothly.
If you have problems shifting gears, it is possible that the gears are damaged. If the gears are worn, you will find metal shavings in the oil when you change the oil. If a gear breaks off completely, the transmission will lock up.
When you open the engine, you can check the condition of the teeth and see if they show any grinding marks or are rounded instead of sharp.
The easiest way to change the gear ratio is to replace the rear and front sprocket, but of course you can also replace the complete gearbox (e.g. for 50cc bikes with AM6 and Derbi engine).
Repair gears or buy a new one?
Repairing gears is not that easy. You need the right tools, and you need to have sufficient knowledge about the materials to repair the gear so that it is robust enough to do its job. Just use new gears instead!
Transmission does not work
It's not necessarily the gears that are responsible for a gearbox failure. It is best to check the shift drum, gear selector fork, bearings, etc. as well.
Our exploded views will help you find the right spare part.
| Pinasco Primary Gear 16 teeth (+ 10km/h) Vespa PK50 / Special | |
|---|---|
| Article no. | PIN-25270972 |
| Weight | 0,60 kg |
| Brand | Pinasco |
| Product type | Transmission gear |
| Type | Primary |