221CC MALOSSI MHR THERMAL UNIT for VESPA PX -RALLY
Cylinder kit MHR Ø 68,5 aluminium CVF2 pin Ø 16 stroke 60
Recommended with a 60 mm stroke crankshaft, strongly tuned crankcases, Ø 30 carburettors and Malossi exhaust or expansion exhaust.
MHR version is different from SPORT version also due to the port map with racing features. The perfect centering between head and cylinder is guaranteed by two centering bushes located on two stud bolts, while the o-ring ensures a perfect seal.
On the 2022 version the connection to the silencer is made by means of a flange-joint set fixed to the cylinder through four cap screws and to the exhaust through an o-ring seal to avoid any leakage from the cylinder kit. This extremely easy system allows to fit with the maximum resistance any kind of exhaust with Ø44.5 mm inlet diameter present in the market, thus avoiding any unscrewing or rotation due to vehicle vibrations.
Direct link:
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Reccomended crankshaft link:
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Reccomended crankcase link:
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You can find many other articles for your VESPA - MOPED - APE on our website.
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⭕ Please contact the Civil Motorisation office of your area in order to use this product on public streets.