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Article no.: U241.561

CVT Variator Polini Speed Control Gilera Runner / Stalker

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Description

The job of the variator is to provide smooth transmission gearing by changing through different gear ratios. This Polini variator's wide adjustable range of ratios makes for excellent acceleration and slightly higher top speed. Keep in mind that choosing the proper roller weights is really important if you want to get good results.

For most models, 2 or 3 sets of HQ roller weights are included.

Top-of -the-line variator suited up to midrange tuning.

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Notes and Safety

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.

Technical details
CVT Variator Polini Speed Control Gilera Runner / Stalker
Article no.U241.561
EAN8054705074172
Weight0,54 kg
SeriesHi-Speed
BrandPolini
Product typeCVT
RangeStandard
Roller size19 x 15,5 mm
Roller weight8,1 gr
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