Variator Hi-Speed (diameter 90mm) - Piaggio Boss 50 AIR 2T ('88-'89) / Si Mix 50 AIR 2T ('99-'01) - Polini

Hi-Speed Variator Polini (90mm), for the following applications: Piaggio Boss 50 AIR 2T 1988-1989 / Bravo 50 AIR 2T 1973-1998 / Bravo 50 AIR 2T E1 1999-2001 / Ciao 50 AIR 2T 1967-1984 / Ciao 50 AIR 2T E1 1996-2001 / Ciao 50 AIR 2T E2 2002-2005 / Ciao PX 50 AIR 2T 1985-1996 / Grillo 50 AIR 2T 1989 / Grillo A.E. 50 AIR 2T 1990-1996 / Si 50 AIR 2T 1978-1998 / Si Mix 50 AIR 2T 1999-2001.

A sealed bearing with precision machined bearing bushings significantly reduces friction and dirt accumulation during sliding. The result is perfect shifting and longevity due to reduced friction. Delivery as shown in the picture.

Technical specifications:
- Diameter: 90 mm;
- Number of rollers: 8;
- Roller dimensions / weight: 14x14 mm / 7.6 g;
- Class: Sport.