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Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack Specific topics relating to wheels and tires. |
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01-26-2016, 11:47 AM | #1 |
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8.5 inch wide wheel tire size?
I just oredered the Avid-1 AV20 wheels in a 18x8.5 with 33 offset and I was wondering wether I should put 235 section tires or 245? Wht do you guys run on an 8.5 inch wheel?
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01-26-2016, 11:54 AM | #2 |
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What are you plans with the car?
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01-26-2016, 12:07 PM | #3 |
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01-26-2016, 12:10 PM | #4 |
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245 if your gona do auto-x but just remember tire compound > tire width for traction
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The Following User Says Thank You to go_a_way1 For This Useful Post: | ChrisP (01-26-2016) |
01-26-2016, 12:13 PM | #5 |
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245/35/18 would be my suggestion, you won't see any stretch that way. Which color did you go with? Post some pics when you get them
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The Following User Says Thank You to djdnz For This Useful Post: | ChrisP (01-26-2016) |
01-26-2016, 12:15 PM | #6 |
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01-26-2016, 12:20 PM | #7 |
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Generally speaking the tread width (not section width) should be within .5" of your wheel width.
So for example... -Your wheel width = 8.5" -Your tire make/model is = Michelin Pilot Super Sport -Section width = 245 @ 9.8" (the tire measured from widest part of the tire sidewall to sidewall). -Tread width = 9.0" (the width of the "treadded" portion of the tire). This is within mfg specifications and will perform as expected on an 8.5" wheel. Mfgs also publish a range of rim widths that their tires are expected to work well. Here are all of Tirerack.com's measured widths for the same tire. http://www.tirerack.com/tires/Spec.j...omCompare1=yes Tirerack measures every tire they sell. So their site is a decent reference point for tire specifications. From everything I've heard, for AutoX you want the widest possible tire (255-275 on our cars). As noted above, compound is more important than width. However there are some tradeoffs to that if you're not going to be AutoX'ing regularly as people who do will be running the stickiest possible tire which are generally not great for DD (they wear fast, are noisy, they tramline in ruts, and they're kinda uncomfortable). If you're just AutoX'ing for fun and don't really care about time, then 235 or 245 won't make a lick of difference. Best of luck. |
01-26-2016, 01:42 PM | #8 |
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I ran 225s without issues.
You can do almost any size you want but moving up to 245s won't do much for performance increase over 235. -alex |
The Following User Says Thank You to mav1178 For This Useful Post: | ChrisP (01-26-2016) |
01-26-2016, 03:08 PM | #9 |
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I run a 245/35/18 Michelin PSS on my 18x8.5 setup. They fit great, and don't have any stretch.
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01-26-2016, 04:07 PM | #10 |
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