CCM's were a decent quality bike back in the mid-70's, their biggest problem seems to have been lack of distribution - I mean, if you could only find one of two in Erie, PA (90 miles from the Peace Bridge crossing between Buffalo and Ft. Erie) back then, they certainly weren't trying too hard to sell in the U.S.
I was always impressed with what they put out, wanted one for the stable back then, but, of course, couldn't find any for sale. If it fits you, keep the bike and enjoy.
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Syke
“No one in this world, so far as I know — and I have searched the records for years, and employed agents to help me — has ever lost money by underestimating the intelligence of the great masses of the plain people. Nor has anyone ever lost public office thereby.”
H.L. Mencken, (1926)