I know that the basic Model K road bike had a compression ratio of 6.5 to 1.
But what was the compression ratio of the racing Model KR? Was it higher than the standard road K model or not? In the only H-D document that I have that lists the KR compression ratio, it says "Not Available"!
Does anyone who collects KRs have reliable information about the KR compression ratio?
But what was the compression ratio of the racing Model KR? Was it higher than the standard road K model or not? In the only H-D document that I have that lists the KR compression ratio, it says "Not Available"!
Does anyone who collects KRs have reliable information about the KR compression ratio?
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