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03-31-2011
So i just got my first set of rims. Upgraded from 16's to 17's. Got a lower pro tire on there too. went from stock 225/60/r16 to 215/50/r17. The change in height seems negligible as the newer tires sit about 1/4 - 1/2 inch lower than the originals. Question being, will that little of a change throw off my speedometer? And if so by much?
03-31-2011
Any time you don't stay with the same diameter of the entire wheel and tires combined your speedo will be off.
03-31-2011
Yea I found the answer to my question, and a good link to compare old vs new tires and how it will effect your speedometer.
Tire size calculator
03-31-2011
wow, you got a real small tire. why did you go so small?
03-31-2011
Tire Size Calculator - tire & wheel plus sizing
That's a better tire calculator.
Usually you wanna stay within 3% of your stock diameter Rim/Tire combo.. What you have on is not only too small and probably rides pretty rough.. but it's 4.36% too small.
It says your speedometer will be off by 4.556%.
So if your speedometer says 63 mph, you're actually going 60 mph.
235-55-17's are a nice size tire for 17's, they are nice and meaty and look great. They are only slightly bigger then stock diameter.
03-31-2011
And being teh stock Bonneville size starting in 2000...they are a pain in teh azz to find sneakers for. At least if you want an all season at a decent price.Originally Posted by nawarkk
03-31-2011
I was thinkin that too, as far as upgrading to 225 or 235/55 these tires just came as part of a package, rims and tires for 600. I'll get pics on in a bit but i do plan on getting bigger ones (and wider) next time around, but might as well wear these ones down first, yea?
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