Cylinder base spacer -BGM ORIGINAL- Malossi 210 cc MHR / SPORT – Vespa PX200, Rally200, Cosa200 – 1.0mm

Cylinder base spacer for the Malossi Sport and MHR cylinders with 210ccm.
With this spacer the cylinder can be underlaid to raise the control angles which are important for the performance.

The MHR cylinder has proven to be a very grateful candidate for a higher position, despite the much more generous flushing cross sections than its predecessor. The prerequisite is an environment corresponding to the cylinder, such as a large carburettor with a corresponding intake system and a powerful exhaust system.

Thanks to the good flushing system of the MHR, the cylinder loses little power in the pre-resonance range (the range before the exhaust starts to assist), even with a strong raising.

Please remember that a dimension corresponding to the raising is removed from the head. Otherwise the compression and power will decrease dramatically. If the cylinder is operated with a crankshaft with 60mm stroke, the raising of the cylinder is obligatory and a simple means to realize the additional stroke (3mm = 1,5mm spacer at the base) without additional head gasket.

(US)

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