The piston ring thickness: 1,5mm and 1mm
GRAND-SPORT ROAD piston for the well known POLINI 130 ccm kit The idea for this piston kit is having a well prized alternative with high quality GRAND-SPORT piston rings. The piston is an italian premium product with the original compression heigth of 36,0mm. As the dimensions of the GRAND-SPORT piston are like the POLINI original, the GRAND-SPORT piston is ready to use without any modifications.
Produktdata: Piston diameter: 57,0 / 57,4 / 57,8mm Compression heigth: 36,0mm Pin size: 15mm Piston ring quantity: 2 Piston ring thickness: 1,5mm
GRAND-SPORT ROAD PLUS piston kit for the well known POLINI 130 kit
The GRAND-SPORT ROAD PLUS piston series is the link beween the successful ROAD and RACE series. Offering the same compression heigth as the standard POLINI and the GRAND-SPORT ROAD piston but enhaced by 1mm STEEL piston rings from the RACE series.
Produktdata: Piston diameter: 57,0 / 57,5 / 58,0mm Compression heigth: 36,0mm Pin size: 15mm Piston ring quantity: 2 Piston ring thickness: 1mm