Here is the cast iron kit from POLINI , with its diameter of 49mm, it offers no less than 78.5cc real against the original 50cc of the PIAGGIO 4T 50cc scooter engines!
It has a specific high compression piston to increase performance by playing on the compression! The segments are specifically designed to offer less friction and resistance while preserving compression and longevity as much as possible! This kit is both very efficient and solid! The MALOSSI (its direct competitor) is a little more efficient and made of aluminum. Both are an excellent choice! POLINI announces a power of 6.5hp at 7500rpm! For an idea, a stock engine offers 4.35hp at 8250 rpm! By accompanying this kit with an exhaust like the TURBOKIT, a camshaft like the MALOSSI . A good POLINI variator, a POLINI belt, a good sports filter to facilitate breathing... You can hope to take 7.5 or even 8.5hp with an improvement of the cylinder head! Only use good oil, a racing spark plug and SP 98! The kit is obviously delivered complete with piston pin, clips, seals, rings, instructions...
Fits on EURO 4, EURO 5 versions... :
Please note, installation on EURO 4, accompanied by box 171.0009
Please note, installation on EURO 4, accompanied by box 171.0020
APRILIA : SCARABEO 50 4T 4V Piaggio from 2009-> - SPORTCITY ONE 50 4T 4V - SR 50 4T MOTARD 4V from 2013->
MALAGUTI: CENTRO 50 4T 4 Valvole - CIAK 50 4T 4 Valvole
PIAGGIO : FLY 50 4T 4V from 2012-> - LIBERTY 50 4T iGET 3V ie E4 from 2018 to 2020 (CA11M) - LIBERTY 50 4T iGET 3V from E5 from 2021-> - ZIP 50 4T 3V ie E4 from '18 to '20 (CA21M) - ZIP 50 4T 3V ie E5 dal 2021-> (CD01M)
VESPA: -50 4T PRIMAVERA 3V iGET E4 '18->'20 - -50 4T PRIMAVERA 3V iGET E5 '21->24' (CD01M) - -50 4T PRIMAVERA 4V - -50 4T S-LX 4V - -50 4T SPRINT 3V iGET E4 '18->'20 - -50 4T SPRINT 3V iGET E5 dal '21->24' (CD01M) - -50 4T SPRINT 4V
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