Tire Size Guide for stock wheels

[ronmexico]

I think this might be useful info for someone. Mod's put this where you will.

If you are looking to change tire size with your stock 17's, this might be useful info.

Tire diameter = Wheel diameter (inches) + width (mm) *25.4*Sidewall ratio/50\\

*Formatting wont work for some reason, just read across 225 should be under width, Sidewall should be 45, wheel size should be 17, tier diameter 25.0, speed error n/a and the last number is fender gap.So just follow it down. Or see attachment.

Width Sidewall Wheel Size Tire Diameter Spd Error Fender Gap
Original 225 45 17 25.0 n/a 0.0
Lower 225 40 17 24.1 3.7 0.4
Lowest 225 35 17 23.2 7.6 0.9
+1 235 40 17 24.4 2.3 0.3

 

[Cloudlink04]

Good idea but would be more useful with 18" tire size as well.

 

[ronmexico]

Yeah I dont have 18's so I didnt formulate for 18's. But I did insert the formula so you could just sub it in and get your answer

 

[LI_HXC_VR6]

Good info, similar to the sticky thread in the wheel and tire forum:
http://golfmkv.com/forums/showthread.php?t=59761

also there's a calculator that you plug in your stock wheel/tire size and your new wheel/tire size and it gives you all that info (minus the fender measurement)
http://www.miata.net/garage/tirecalc.html <--- very useful.

 

[GTI2007]

Moved.