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+--- Thread: different tire size (/showthread.php?tid=21952)
different tire size - rnzo86 - 11-07-2013
hey guys just wondering how much it would affect the car if I didn't put the ideal size for the SVT but the size is for a regular focus
RE: different tire size - sonic_mikey - 11-08-2013
http://www.miata.net/garage/tirecalc.html
this will tell you everything you wanna know
RE: different tire size - Scorcher000 - 11-10-2013
Bigger Then OE Specs
Your rotation of the tires will be less so your RPM will be lower meaning less fuel burn and your real speed will be a few KM per hour higher then your speedometer says.
Smaller Then OE Specs
Your rotation of the tires will be more so your RPM will be higher meaning more fuel burn and your real speed will be a few KM per hour less then your speedometer says.
There are many other issues that could be a cause of different tires sizes but if done properly you shouldn't have an issue.
RE: different tire size - castone - 11-10-2013
Do you mean just switching to a 16" instead of a 17" on your SVT?
If so no problem.
A 205-50-16 is pretty much the equivalent diameter to a 215-45-17 on an SVT.
Also a couple more options that would work for you as well
195-55-16,
205-55-16,
205-45-17,
215-40-17,
225-35-18,
215-40-18...