Factory S-lite 17" x 7 wheel is it work for 215 or 225?
what the max tire width if I want to keep the factory's S- Lite wheels?
If I really go to 225, what the other number? 35, 40 or 45 with 16" 17" or 18"?????
Clearances should be OK especially if your car isn't lowered.
The tire will be .2 inches taller. This will get you slightly softer ride and slightly more sidewall flex during cornering. Probably nothing drastic but notiveable. What will be just as dramatic is you will be going(I'm assuming here) from a run flat to a non run flat tire.
Both aspects together should make quite a difference.
Also at 60 mph your speedo will read slow. If yours is like most it already reads 2-3 mph fast at 60 so that isn't much of an issue either.
Honestly unless you're thinking of using them for racing only I'd stick with the 225/45. The 225/40s are shorter so your speedo will be farther off. You'll also be turning higher RPMS at speed. Effectively given you shorter gearing. That would help launches.
Here's where I get the info: Tire calculator. Well worth keeping bookmarked.
Actually, I perfer 45 better than 40 the reason I asked 40 is I think 225/40 will smaller than 225/45 that means it should have more space to go. Finally, I still wonder the Factory's S-Lite wheel 17X7 is ok for 225?
Mr MINIAC, I know you are running 225/45/17 with goodyears F-1GS-D3 and this is exactly whatI I wanted. Are you using your factory wheels? if not what your size? However, what your common of this rubber.
Sorry to join in late but the 225's are rather wide for a 7X17" wheel, normally
a 7.5x17 is the minimum for this size tyre. If you want to go this wide I'd recommend
225/40 as they are closest in gearing and also a change to a wider wheel. Or you
could keep the S-lite as although heavy they are the best looking and keep to a
215/45 or 215/40. The gearing differences for all these tyres are so small you won't
actually notice it. 215/40 would be my choice as a good compromise on looks and
the least worry about fouling the suspension or bodywork.
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