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Racing Cylinder MALOSSI W5

172cc by Worb5 for Vespa T5,
Ø 65,0mm, aluminium, 5 ports,
stroke 52mm, 2 piston ring(s),
w/o cylinder head,
exhaust, boost port, piston,
base window modified


High flyer 172cc Tuningkit from MALOSSI is a real hottie. More stroke, more power, higher rpm's, simply a big plus in every important area.

Based on the characteristics of the original cylinder, MALOSSI has developed a sporting version of the T5 theme. High quality aluminum, 5 transfers and a durable nicasil powder coating add up to a thermally dependable cylinder. The piston is name brand ASSO, with 2 thin break resistant trapeze form piston rings.

Sporting driving characteristics, extended trips alone or with a passenger are no problem with this power increase. Carefree driving around town with the original 24mm carburettor, this cylinder would love a longer transmission, sport exhaust and a larger carburetor 28mm+ when attempting being tsars on the motorway. Important here is a modified cylinder head for each, we recommend the CNC milled Highlight from MMW.

For those who want more: worb5 has taken the cylinder from the SERIO PRO line to a higher level; the W5 MALOSSI 172cc is modified on exhaust, piston base cutout, boost port and piston cutout.

Conclusion: The SIP Man's favorite for every T5 friend; absolute max capacity, finest aluminum, high quality coating, solid and good quality pistons. Rpm's and performance guaranteed.


Aluminum/ 65mm bore/ 5 transfers/ 172.55cc

Aluminum cylinder, 52mm stroke, 5 transfers, pistons with 2 trapeze piston rings and chromed run surface, compression 11.0:1, exhaust width 61%, includes gasket set, exhaust studs and gudgeon pin bearing.

Plug & Play, in first level no adjustments necessary. Jets and ignition should be checked and optimised!


SIP TIP! W3CC spark plug, ignition alignment 14-16°, main jet SI 24/24G 118-122, modified cylinder head/MMW head and COSA clutch are a must, racing exhaust such as SIP Performance, longer transmission and 28/30mm carburettor recommended and 30/34 carburettor with reed valve manifold belong on the wish list for all bottom end tuners.


SIP customer Daniel W/. Issing, Germany

"Super, first class all round cylinder for touring and city traffic. With SIP exhaust, rpm's are around 10,000. And all this at full power from down under."

Customers also searched for this article with:  race cylinder, performance cylinder, race cilinder, tuning cylinder, aluminum, alluminium, ally, ally, aloy, alloy

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1,600g / piece
Stock on hand   Amount


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icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA T5 / Elestart 125 VNX5T 2T AC `85-`90
VESPA T5 Classic 125 VNX5T 2T AC `92-`95

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