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Next issue, the rear tire. The OE Harley tire is a 165-70-17. I don't want to use a motorcycle tire or it will just wear out quickly in the center. I also can not use a tire whose section width is more than about 6.5 inches. The motorcycle tire on the wheel now is about 6.5 inches in sectional width and the clearance between the tire and drive belt is practically nothing, maybe 1/8th inch (no belt yet). It seems like the best solution I have found so far is a tire made for antique cars available from Coker tire, a 550R17 with is recommended for a 5 inch wheel (which is right), with a sectional width of 5.5 inches and tread width of 4.5 inches. It will cost me $250 for one tire.
The diameter is 28.5 inches which will lower the overall final drive ratio with 708 revolutions per mile.
regards
Mech
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