Polini Hi-Speed Yamaha Aerox 50 4T euro 4 variator

Polini HI-SPEED variator for Yamaha Aerox 50 4T euro 4 from year 2018.

The experience in competition allows Polini to develop high quality products like this variator.
Designed to improve the performance of both original and prepared engines.
Improves the response at all engine speeds and increases the acceleration significantly.
The kit alsoincludes: clamp springs, central spring and slider for this one.

Immediately, the acceleration from 0 will have more power and thanks to the new engine speed, the acceleration will improve to reach the top speed sooner.
The contrast spring has a load increased by 87%. The clutch springs with a load increased by 35%, increase the clutch engagement by 500 RPM.
To obtain these performances, it is compulsory to install also the Polini Lambda sensor emulator, with the code 171.0010.

Rollers: 16x13 4,9gr