Aluminum cylinder and barrel with nikasil coating. 62mm bore, 57mm stroke, 172cc, elliptical exhaust, 5 ports, lightened two-band piston, interlocking aluminum head. With gaskets and assembly instructions.

The kit can be mounted on largeframe 3-port carter.

The most common models are: Cosa125, Cosa150, GTR125, TS125, LML Star 125/150, Stella 125/150. The kit includes everything needed to assemble the thermal unit, including instructions. It can be mounted on original crankcases. The piston stroke is the same as the original Piaggio but it is not recommended to use the original crankshaft. The fitting of a larger carburetor is recommended. Cylinder born on the track but also excellent for road use.

Quattrini products have always been synonymous with precision in construction and reliability, if treated as they deserve. For those who know Max, he knows that in his work he puts a constant commitment to continually renew himself to offer products that are always at the forefront using the best technologies on the market. The results are fantastic on the eye even before they are on the road. The performances are very high and all Vespa tuning enthusiasts can recognize them by now.
All Max Quattrini cylinders, like this one and almost all the kits sold on our site, can only be used on the track and never on the road if not properly approved.

This and other Quattrini cylinders for wasp are:
M1X (172cc crankcase px125-150)
M1XL (172cc reed valve to the cylinder crankcase px 125-150)
M232 (244cc crankcase pe200)
M244 (244cc crankcase pe200)
M1B D60 GTR (144cc naturally aspirated)
M1B D56 GTR (125cc naturally aspirated)
M1L D60 GTR (144cc reed valve to cylinder)
M1L D56 GTR (125cc reed valve to cylinder)
M1L D60 R53 (150cc reed valve to cylinder only for c1 Quattrini crankcase)
M200 (200cc reed valve to cylinder only for c200 Quattrini crankcase)

for the assembly of this kit it is recommended to purchase the following items:


Our complete engines are also available. Some ready for delivery, others customizable by reservation with delivery in about 30 days.

Other racing components and complete engines on request are: Falc, Malossi, Polini, Bfa and many others. For any request, do not hesitate to contact us by email at or by phone / whatsapp at +393755789138.

If you have questions about our products, direct assistance is always available via whatsapp or by call. We will be available to clarify any doubts.