Oil Seal D.31mm for Variator CVT Polini Maxi Hi-Speed

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.

what does a gasket do?

There are many different types of gaskets or gasket sets in an engine, e.g. cylinder gaskets, intake gaskets, oil seals, crankcase gaskets, exhaust gaskets, carburetor gaskets or engine gasket sets. They all have the same function: to prevent leakage between components.

When and why should you change an engine gasket?

When servicing your two-wheeler or noticing leaking fluids, be sure to follow this one important rule: Always replace an old gasket with a new gasket.
Damaged or worn gaskets can no longer do their job properly, the parts that have to be sealed are no longer adequately sealed, which can lead to serious follow-up damages.

Before you install a new gasket, you must thoroughly clean and degrease the sealing surface.

You can also use silicone sealant as an alternative to paper or metal gaskets in some cases. But beware, O-rings and oil seals cannot be replaced by sealant.