LOl. Nah. They just weren't that great!
The ring retaining pins sunk back into the piston, allowing the rings to rotate and snag in the ports.
MVX was before KR1 times. More like the old KR250 Tandem Twin era. Had one of them from new from the Boyle Bros!





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Opinions are like arseholes: Everybody has got one, but that doesn't mean you got to air it in public all the time....

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