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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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 Posted: Mon, Dec, 21, 2009, 9: 02 pm Post subject: Alternate front tire size? |
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Will 60 series tires fit on the rims of an '02? If not, what will fit? 55s?
I just want to go with a slightly narrower tire up front, but the same height as the rears.
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Ltngdrvr
Curtis Bender
Joined: 09 May 2002
Posts: 7564
Location: New Caney, Texas
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| Posted: Mon, Dec, 21, 2009, 9: 51 pm Post subject: |
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Mark buddy, I believe you are going to be SOL on finding a narrower front tire for the 18" rims that are the same height as the rears. All you will find will be taller, and not just a little taller either, probably 1.5" to 3" taller.
Why do you want to do this?
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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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| Posted: Thu, Dec, 24, 2009, 4: 46 pm Post subject: |
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Just for the looks really. I don't need the performance handling of those big wide tires up front. Something a little narrower that will channel the rain better won't hurt either.
I can find the same 285 series tires in 60, 55 and 50 ratios, but I just need to know how narrow will actually fit. I don't even know the rim width... what is the rim width anyway? 10"?
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'02 number 924 of 4726
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RedApple 04
Billy Bell
Joined: 26 Jan 2005
Posts: 1418
Location: Houston, Texas
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Ltngdrvr
Curtis Bender
Joined: 09 May 2002
Posts: 7564
Location: New Caney, Texas
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| Posted: Thu, Dec, 24, 2009, 5: 49 pm Post subject: |
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Yeah, that calculator that Billy posted is very good for comparing tire sizes, you can even input tire sizes that don't exist just for grins.
Stock rim is 9.5 wide, tire is 295/45/18 and is 28.4 tall.
You would have to drop down to a 245 section width in a 55 or 60 series to get the same height, don't think anyone makes them that size. Best bet is to just stick to the stock size and slow down when it's wet.
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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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| Posted: Sun, Dec, 27, 2009, 8: 02 pm Post subject: |
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Well it's also for looks. I will have to think whether I can live with a tire on the front an inch taller than the rear. I don't think it would be all that noticable.
255/55R18 is right at 29"... or a 275/55 at 29.8". One of those might do the trick.
Or with Nittos on the back even the 305/45s are right at 28.8" so maybe one of those would look ok
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'02 number 924 of 4726
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Markbo
Mark Potter
Joined: 13 May 2002
Posts: 2329
Location: Tomball
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| Posted: Tue, Dec, 29, 2009, 2: 49 pm Post subject: |
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Finally got to use that site - thanks Billy!
It looks like the smallest (shortest) I could go with would be the 265/60 because of suggest rim diameter. The max for a 255 is 9". So I guess I will have a slightly taller front tire!
Where is speedometer speed measured from? Front or back tires? Do you think different revs per mile will throw off the ABS wheel speed sensors?
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'02 number 924 of 4726
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Ken Wilson
RUNVS
Joined: 10 May 2002
Posts: 8753
Location: Houston, TX
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| Posted: Tue, Dec, 29, 2009, 3: 42 pm Post subject: |
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The speed sensor is hooked up to the transmission, which is driven by the rear wheel / tire size. I wouldn't think that changing the diameter of the front tires would affect the ABS any.
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Ken Wilson
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Ltngdrvr
Curtis Bender
Joined: 09 May 2002
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Location: New Caney, Texas
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| Posted: Tue, Dec, 29, 2009, 7: 45 pm Post subject: |
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The different speed between front and rear will mess with the ABS and probably trip the ABS light at some point.
Brakes still work but ABS won't be right.
The greater the height difference the worse it will be.
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Big Bob
Big Bob
Joined: 09 May 2002
Posts: 2839
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| Posted: Wed, Dec, 30, 2009, 12: 05 am Post subject: |
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Significant difference in tire size definitely affects ABS and front to rear brake balance. When I went to shorter front tires at one point to reduce rollout and reaction time, the ABS detected the rear tires turning more slowly and thus reduce braking to the rear tires. This in turn forced the front wheels to do all the braking and badly hot spotted the front rotors and smiked front pads when braking hard. I had a 2" diameter difference at the time. When the rear tires were 2" smaller than front back in the day of 26" ET Streets, the effect on braking was not as noticable since our rear brakes do a lesser portion of braking anyway. That why rear brakes last twice as long as front,
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