Description
Polini Maxi Hi-Speed variator for Vespa GTS 125-150cc
The Polini Maxi Hi-Speed variator is the perfect solution for anyone who wants to improve the performance of their maxi scooter. Compatible with the Vespa GTS, Piaggio Medley and Aprilia SR GT models.
We offer you the Polini Maxi Hi-Speed variator for maxi scooters at a top price-performance ratio. The Polini Maxi Hi-Speed is one of the most powerful CVTs for maxi scooters.
Optimized design for superior performance
The roller tracks make better use of the engine's power band than the original variator. This changes the transmission ratio to a more favorable torque range, resulting in more acceleration and a slightly higher top speed.
A sealed plain bearing with cleanly processed bushing reduces the friction values, which leads to optimized shifting and longevity due to reduced wear.
The supplied torque spring offers 8% more stiffness than the original, which improves off-the-line pull and engine response depending on the setup.
Contents Polini Vario Kit
- 1x Maxi Hi-Speed CVT
- 1x ramp plate
- 1x sleeve
- 1x contra spring
- 2x set of weights 19x17 mm (9.7 g and 11.5 g)
Compatibility
Compatible with scooters equipped with Piaggio 125-150cc 4T Euro 4 and Euro 5 engines:
- Vespa GTS 125 / 150
- Piaggio Medley 125/150
- Aprilia SR GT 125 / 200
Polini Hi-Speed
The famous Polini brand lists their "Hi-Speed" CVT as part of their catalog for many years. Of course, the CVT has been upgraded and improved over time, but the basic principle is still the same: a tuning variator for original and slightly tuned engines with a noticeable increase in performance compared to the original variator.
Performance Polini High Speed CVT
With newly calculated and optimized angles, the Hi-Speed variator allows an extended power band. This shows above all in noticeably better acceleration, but also in a slightly higher top speed.
Two integrated O-rings provide the sleeve with better lubrication, resulting in less friction.
The low-friction, robust chrome coating ensures reduced wear and increased service life.
For heavily tuned engines and engines with a significantly larger displacement, it is worth using an overrange CVT.
scooter CVT
Modern scooters are equipped with a continuously variable transmission, the so-called CVT, also called variator.
CVT Parts:
- Front pulley, movable. It contains the variator weights and has a special shape with an inclined surface to allow the V-belt to move freely up and down.
- Ramp plate: Holds the weights in place.
- Variator sleeve: Serves as a bearing for the variator, which moves axially back and forth, i.e., opens and closes.
- CVT roller weights: Adjustment weights that play a critical role in function and performance.
original, Sport and Oversize CVTs
- Original: Original or OEM quality CVTs are equipped with a restrictor to limit the speed to 45km/h. There are riders who remove the restrictor to derestrict their scooter and unleash the full performance without restrictions.
- Sport: Sport CVTs are lighter than the original and are characterized by special angles and a special coating, which increases the top speed, but especially acceleration.
- Oversize: Based on the same principle as the Sport CVT, but has larger dimensions. With an oversize / overrange vario, the performance of the scooter can be increased even further.
You should also always replace the V-belt when replacing the CVT or go for a complete CVT kit.
How to install a CVT transmission ?
| CVT Polini Maxi Hi-Speed Vespa GTS 125 - 150 | |
|---|---|
| Article no. | P241.771 |
| Weight | 0,79 kg |
| Series | Hi-Speed |
| Brand | Polini |
| Product type | CVT |
| Range | Oversize |
| Roller size | 19 x 17 mm |
| Roller weight | 9,7 gr, 11,5 gr |