Vintage CCM BSA Five Stroke Motor

A extremelly rare motor forgotten in time. A interesting concept that was developed but never saw production. Basically the crank case pressure on the power stroke supercharges the following intake stroke...

Re: Vintage CCM BSA Five Stroke Motor


i have a couple magazine tests on the CCM 500 four stroke MX

never heard of the 5 stroke

i actually had a sales brochure for the CCM

there was a dealer in southern Illinois at the time

it was hideously expensive at the time(1975)?

there was also a 650cc street legal bike

had a chrome/nickel frame, oil in the frame

i do know there was a CCM at a Carlsbad .CA. grand prix in early 70s

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