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Racing Cylinder POLINI Racing

75cc for Vespa 50/PK50/S/XL
/XL2,
Ø 47,0mm, cast iron, 6 ports,
stroke 43mm,
with cylinder head,
M6 exhaust studs

FOR RACE USE ONLY

The POLINI RACING is the secret king of the 75cc cast iron class and makes the front wheel rise! POLINI entices with attributes that are otherwise only to be found in the 125cc long-stroke segment.

Highlights such as a generous exhaust with 2 auxiliary exhaust channels, a high quality ASSO piston and 6 transfer port channels are enough to make your mouth water. In addition, the POLINI 75cc RACING cylinder is painted black for protection against corrosion and for better heat dissipation.

Conclusion: Only short-stroke cylinder with auxiliary exhaust porting, scores points with its extra performance,  a higher compression of 11.9:1 and the 6 powerful transfer ports.

 

Cast iron/ 47mm bore/ 6 transfer ports/ 74.60cc

Cast iron cylinder, stroke 43mm, 6 transfer ports, coated piston with 2 piston rings and cut-out, a main exhaust with 2 auxiliary exhausts, 6mm exhaust studs, original POLINI cylinder head is included in delivery, compression 11.9:1, incl. gasket set. Jets should be adjusted. Fits on all Vespa 50/PK/XL/XL2 models, except PK automatic. Transfer ports match the originals, casing must not be modified.

 

SIP-TIP: Adjusting the main jet and a new spark plug is a must. Recommended transmission here is at least a 3.72 primary. Optimal with 16/ 16 carburettor, original exhaust with a fat manifold or the SITO banana. After a little modification of the cylinder, a 19/ 19 carburettor can also be used in combination with a POLINI racing exhaust with no problem!

 

SIP-Community User "Marco_r3000":

"Polini are simply good. Everything fits with them, and it is just reliable. Easy to run in and with the right power. Combined with Polini exhaust, larger drive cag, 19 carburettor, racing air filter and an HP4 you have really got something there."


OEM Numbers (for the purpose of comparison)  140.0053/R (POLINI)


Customers also searched for this article with:  race cylinder, performance cylinder, race cilinder, tuning cylinder


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$134.00
Art.No.
1400053R
2,500g / piece
Stock on hand   Amount

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icon scootermodels This product fits the following models
  PIAGGIO
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
PIAGGIO APE 50 50 TL1-2T 2T AC `69-`80
PIAGGIO APE 50 FL / FL2 50 TL6T 2T AC `89-
PIAGGIO APE 50 FL3 50 TL5T 2T AC `96-
PIAGGIO APE 50 Mix 50 2T AC `99-
PIAGGIO APE P 50 ( Vespa Car ) 50 TL3T 2T AC `80-
PIAGGIO APE TM P 50 / Elestart 50 TL4T 2T AC `85-
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC `63-`71 92877 -> ("2. series")
VESPA 50 L 50 V5A1T 2T AC `66-70
VESPA 50 R 50 V5A1T 2T AC `69-`83
VESPA 50 Revival 50 V5R1T 2T AC `90-
VESPA 50 S 50 V5SA1T 2T AC `63-`84
VESPA 50 Special 50 V5A2T 2T AC '69-'72
VESPA 50 Special 50 V5B1T 2T AC '72-'75
VESPA 50 Special 50 V5B3T 2T AC '75-'83
VESPA 50 Special Elestart 50 V5B4T 2T AC '75-'76
VESPA 50 Special Elestart 50 V5B2T 2T AC `72-`75
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72
VESPA 50 SR / Sprinter 50 V5SS2T 2T AC `71-`79
VESPA 50 SS / Super Sprint 50 V5SS1T 2T AC `65-`71
VESPA PK 50 50 V5X1T 2T AC `82-`84
VESPA PK 50 S / Elestart 50 V5X2T 2T AC `82-`84
VESPA PK 50 S Lusso / Elestart 50 V5X2T 2T AC `85-`88
VESPA PK 50 SS / Elestart 50 V5S1T 2T AC `83-`86
VESPA PK 50 XL / Elestart 50 V5X3T 2T AC `85-`90
VESPA PK 50 XL FL 50 V5N1T 2T AC `90-
VESPA PK 50 XL HP 50 V5N2T 2T AC `91-`91
VESPA PK 50 XL N NUOVA 50 V5X5T 2T AC `89-`90
VESPA PK 50 XL Rush / Elestart 50 V5X4T 2T AC `88-`90
VESPA PK 50 XL2 / Elestart 50 V5X3T 2T AC `90-

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