Cylinder base spacer -BGM PRO- Malossi 210 cc MHR / SPORT - Vespa PX200, Rally200, Cosa200 -

Cylinder foot spacer for the Malossi Sport and MHR cylinders with 210ccm.
This allows the cylinder to be underlaid to raise the control angles important for performance.

The MHR cylinder has proven to be a very thankful candidate for a higher profile, despite much more generously dimensioned flushing cross sections than its predecessor. 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 even with a strong boost (the range before the exhaust starts to support).

Please remember that the head will be reduced to a level corresponding to the boost. Otherwise, compaction and performance will drop dramatically. If the cylinder is operated with a crankshaft with a stroke of 60mm, it is obligatory to raise the cylinder and this is a simple means to realize the multiple stroke (3mm = 1.5mm spacer at the foot) without additional head gasket.

(US)

(machine-translated)