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Jeeper
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11,415 Posts
I don't think the speedo gear has anything to do with gear ratios, but I could be wrong. I think it is proportional to tire size only. At 60mph your speedo will read 55.3mph if your gear is for a 30" tire. If it's for a 29" tire it will read 53.5mph and if its for a 27" tire it will read 49.6mph.
 
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