wheel versus tire size?
#1
1995 F150 5.8L 351w
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wheel versus tire size?
i was wonderin how wide of tire you could go on stock 15s? im havin trouble deciding if i should buy 35x12.5 or 35x13.5 inch tires. any help?
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also wondered if wider tires would rub easier. just wanted to see if i could get away with another inch wider (from 35x12.5 to 35x13.5)
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also wondered if wider tires would rub easier. just wanted to see if i could get away with another inch wider (from 35x12.5 to 35x13.5)
Last edited by Gun; 01-21-2009 at 12:26 AM.
#5
No Pain, No Pain!
#7
Senior Member
i think you'd be alot better of with 10.5" then 13.5's. putting real wide rims and tires on puts alot of extra load and stress on your wheel bearings, especially up front.
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#8
No Pain, No Pain!
Oh there's bulging, it just might not be that noticeable. Your tires will wear in the center, but it might take a while. You definitely won't get the same miles out of them that you would on a wider rim. I don't really think it's that big of a deal, I do it too.
#10
I did a lot of rim and tire research before ultimately deciding to get stock-sized replacement tires for my truck. Anything wider than the 235mm stock tires is technically too wide for the 7" rim (I'm pretty sure my stock XL rims are 7", not 8").
Tire manufacturers use a 'measuring rim' to get the optimal section width out of a given tire size. For tires with aspect ratios between 80 and 50 (which is what we're talking about here), the 'measuring rim' is 70% of the section width. So a 235/75 tire is designed for a 6.5" rim. A rough guideline for wider tires would be:
10.5" = 7.5" rim (so if you have an 8" rim you're good)
12.5" = 8.75" rim (basically need a 9" rim)
13.5" = 9.5" rim (basically need a 10" rim)
Obviously you can jam wider tires on smaller rims, but it impacts wear, traction and handling (not to mention starts to look silly at a certain point).
Jim
Tire manufacturers use a 'measuring rim' to get the optimal section width out of a given tire size. For tires with aspect ratios between 80 and 50 (which is what we're talking about here), the 'measuring rim' is 70% of the section width. So a 235/75 tire is designed for a 6.5" rim. A rough guideline for wider tires would be:
10.5" = 7.5" rim (so if you have an 8" rim you're good)
12.5" = 8.75" rim (basically need a 9" rim)
13.5" = 9.5" rim (basically need a 10" rim)
Obviously you can jam wider tires on smaller rims, but it impacts wear, traction and handling (not to mention starts to look silly at a certain point).
Jim