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Old 04-23-2009, 03:17 PM   #26 (permalink)
wyatt
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Quote:
Originally Posted by wwkayaker View Post
When adding larger tires, remember to change the gears for the speedometer and odometer. I got three speeding tickets in 2000 within two months after going to one size larger tires because it through my speedometer off by 5 mph (e.g. 74 mph on speedometer =79mph shown on last ticket). I assume this would also throw off the odometer (1 mile could = 1.1 miles).
Yes, at least it does on mine. I am running 155/80/R13 (instead of the 155/70/R13 recommended since they are no longer easy to find) and my speedometer and odometer are both off. On my drive into work this morning the GPS said I traveled 14.08 miles, the odometer said 13.3. Over a 350+ mile trip the GPS and ODO were off by about 5.6%.
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