171cc POLINI Ø61mm kit, cylinder / piston, PIAGGIO FLY, LIBERTY, VESPA, PRIMAVERA computer unit ... 125 and 150cc 4T

Ideal for gaining torque and power by refurbishing its engine, here is the POLINI kit, with its diameter of 61mm it offers no less than 171cc of real displacement!

In aluminum treated with nycasil, the kit offers excellent cooling (heat transfer). The piston delivered is a model made to obtain a compression ratio of 11.2: 1 with the original cylinder head!

The pack is delivered to you complete with segments, seals, instructions, warranty, axle, clips ... But above all, an electronic engine reprogramming unit to review the injection times (therefore the richness / AFR) which brings reliability and performance !

Very suitable for a well released engine with a sport exhaust without catalyst and a good sport variator!

Mounts on :

PIAGGIO: FLY 125 3V ie dal 2012-> - LIBERTY 125 3V ie dal 2013->

VESPA: VESPA 125 946 4T ie 3V - VESPA 125 LX 3V ie dal 2012-> - VESPA 125 PRIMAVERA 4T 3V ie (M811M) - VESPA 125 S 3V ie dal 2012-> - VESPA 125 SPRINT 4T 3V ie (M813M) - VESPA 150 GTS SUPER 4T 3V ie - VESPA 150 LT-LX 3V ie dal 2012-> - VESPA 150 PRIMAVERA 4T 3V ie (M812M) - VESPA 150 SPRINT 4T 3V ie (M813M)