Tuning made easy! A new highlight is the GRAND- SPORT 130ccm Road Tuning Piston Series.
Pistons from name brand production, of course, "Made in Italy", given the finishing touch with a pair of the brand new GRAND-SPORT HQ piston rings. Classic racing series winner GRAND-SPORT pistons offer a chance to move up into prestige tuning class 130 ccm POLINI cylinders at an affordable price.
Available as Ø 57 mm replacement piston, as well as 1 + 2 oversized. All piston sizes same as original. Name brand pistons made of high quality aluminum alloy, size and compression height (36 mm) same as original, intake side piston window. These high quality piston rings are break-proof and durable, with chrome sliding surface and 1.5 mm ring.
Conclusion: optimal start for those looking for a quick and simple way to optimize their cylinders. No cylinder modifications necessary, simply check piston and piston stop clearance and adjust if necessary.
Aluminum/ Ø 57.00/ 57.40/ 57.80 mm/ name brand piston / 1.5 mm piston rings
High quality aluminum piston, 36 mm compression height, original size and pin clearance as POLINI 130 ccm ASSO pistons, high quality 1 5 mm high quality piston rings with chrome sliding surface. Cylinder will not need to be milled.
SIP-TIP: main jet adjustment and new spark plugs are a must. Malossi 136 cc cylinder head, ET3 Banane and vespatronic ignition are perfect road tuning complements