December 23, 20178 yr Hi, I know this seems strange, but what CC are Ossa MARs? I have one that I have used for a couple of years, and always assumed it was 250, but could it be a 350? It does seem to pull very well, so how can I tell, without measuring the Bore and Stroke. .
December 23, 20178 yr This may assist http://www.trialscentral.com/forums/topic/53359-ossa-engine-size/
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