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Discussion Starter · #1 ·
Eric, will 225/60ZR15 Firestone Firehawk SZ50EPs fit on factory VW "Avus" wheels?

Eric (or anyone running 225/60 15s),
I read the FAQ and sticky threads and understand this size is not among those you recommend for a MKIV VW. Still, if they will fit and will not cause problems (i.e. rubbing--I can live with the speedo error), then I would like to get them for my car. The rim width range in the specs for this tire says 6-8" The factory wheels are 15x6, but the 225's cross section is probably much greater than that of the OEM tires. Will they rub?


[Modified by DJD TDI, 2:12 PM 1-29-2003]
 

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Re: Eric, will 225/60ZR15 Firestone Firehawk SZ50EPs fit on factory VW "Avus" wheels? (pipes)

I have 225/50/16 on my stock 6.5" wheel. 225 on a six inch might be pushing it. The tires on mine stick out a bit past the rim already.
 

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Discussion Starter · #4 ·
Re: Eric, will 225/60ZR15 Firestone Firehawk SZ50EPs fit on factory VW "Avus" wheels? (RavinJetta)

Thanks for all the responses
I'm just looking for the best tire I can put on the factory alloys.
My question re the Firestones is based on the following specs from tirerack:
Tire/Rim Range/Meas. Rim/Tread/Diameter
OEM Contis-------5.5-7.5/5.5/8.2/25.0
OEM Goodyears--5.5-7.0/6.0/7.9/25.0
OEM Michelins----5.5-7.5/6.0/8.0/24.9
Firehawks----6.0-8.0/6.5/7.0/25.6 I also confirmed the Firestone specs at their website.
Not to be argumentative, but a 6" rim is within the rim range for the Firestone and is only 1/2" narrower than the measured rim. What am I missing?
Again, I'm not worried about the diameter (revolutions per mile will be within 2% of stock) or the tire potruding from the rim as long as the tires will be safe and perform to specifications on my rims . . .
I found the following online (from the Tire and Rim Association):
"The TRA also has developed a measuring rim for each tire size that enables all manufacturers to measure their tires on the same size wheel. For 50-series tires and higher, the measuring rim width is 70% of the tire's section width rounded off to the nearest 0.5."" (In this case 9 x 70% = 6.3 rounded to 6.5).
"Choosing a wheel near the middle of the range will give a balance between ride quality and handling. A wider wheel will improve handling at the expense of ride quality, while a narrower wheel will improve ride quality at the expense of handling. Consider these compromises when selecting wheels." (In this case choosing the narrowest wheel in the range would maximize ride quality at the expense of handling).



[Modified by DJD TDI, 4:38 PM 1-29-2003]
 
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