Set of 40 POLINI rollers in Ø19X15.5mm

As indicated above in the description, here is the rollers box for POLINI variator adjustment comprising 4 sets of 10 rollers!

10 rolls of 3.5gr

10 pebbles of 4gr

10 pebbles of 4.5gr

10 pebbles of 5gr

The 2-stroke engine requires precision in your drive settings, remember that the drive replaces the gearbox. If your engine gives 13hp as an example at 12,500 rpm, it will give less power at 11,000 rpm and less power also at 13,500 in overspeed. This is why it is important to find the perfect grammage which will allow you to use the right speed throughout the opening of the drive. This climb must be longitudinal and without burrs. A too light roller will send you in overspeed and will not allow your variator to close well, on the contrary, a too heavy roller will close you too glass the variator, and you will not be able to reach the power mode.

Mounts on the original Piaggio Typhoon, Stalker, Gilera Runner ... and many other variator models like the DOPPLER S2R and S2BR ...