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WebshopVespa Smal...TuningRacing Cyl...Racing Cylinder POLINI by SIP
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Racing Cylinder POLINI by SIP

50cc for Vespa 50 1° Serie,
Ø 38,4mm, cast iron, 5 ports,
stroke 43mm, 2 piston ring(s),
with cylinder head,
cylinder base turned for V50
1° series

FOR RACE USE ONLY

The stairway to tuning heaven: the 50cc POLINI Cylinder Kit is the perfect start to power performance. Robust and solid basis, hot acceleration and sporting features. POLINI has turned out a really sporting cylinder with this tuning kit with lots of surprising features. 5 transfers move with perfect flow. High quality ASSO pistons have 2 piston rings to guarantee a clean seal. Those who are familiar with Dremel and Co. can get even more performance out of this kit.

Conclusion: POLINI offers a powerful performance 50cc tuning cylinder here. This is the real deal when tuning with original cubic capacity. For those who lust for more power, this cylinder offers a great deal of tuning potential. In this case, the motor casing must be modified.

 

Cast iron/ 38.4mm bore/ 5 transfers/ 49.80cc

Cast iron cylinder, 43mm stroke, 5 transfers, divided into 4 auxiliary transfers and a boost port, pistons with 2 piston rings (1x square, 1x L-ring) and boost port side cutout, 6mm exhaust studs, original POLINI cylinder head included in delivery. Compression 9.9:1, including gasket set. Jets should be adjusted.

Fits all Vespa 50/PK/XL/XL2 models, except PK automatic. Transfers match the originals, casing must not be modified.

 

SIP-TIP: Main jet 60-65 and new spark plugs are mandatory. We recommend a longer transmission, for example, the PINASCO pinion. Your motor will be even more sportier with a 16/16 carburettor, original exhaust with a wider manifold or the SITO Banana.

 

SIP-Community User Michael182

"High torque and more power, ... high durability. I can warmly recommend this kit."

 

 

Technische Daten
 BohrungHubHubraumKompressionZündzeitpunktZündkerzeU/MinPSKm/h
 38,443509,9:117°

Bosch

W5AC

77004,3-
1400091

 

SERIE PRO also manufactures cylinders for Vespa 50 1° Serie V5A1T -> 92876. We've modified them so that they fit the first 50's Vespas with their smaller cylinder base connection in motor block.


OEM Numbers (for the purpose of comparison)  (POLINI)


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


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$132.21
Art.No.
14000911
2,242g / piece
Stock on hand   Amount

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Product forums
 
icon scootermodels This product fits the following models
  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 -> 92876, 1. series

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