Technical > Jon's Wheel House
Hoosier replacement tires
GlennLever:
Well went to replace my tires as I am seeing some cracking in the side wall.
I was running 31 12 15, with a 97 inch circumference, with a c11 compound (mid range) on a 12 inch rim
They do not make them any more.
they offer
31.5 13.5 15, with a 99.5 inch circumference, with a c07 compound (mid range (little softer)) they say they fit on 12 - 14 recommend 14
32.0 14.0 15, with a 102 inch circumference, with a c07 compound (mid range (little softer)) they say they fit on 12 - 14 recommend 14
I believe you have
33 12 15, with a 103 inch circumference, with a XXX compound (XXX XXXX) recommend rim XX
I have been running 8.00 at 165 but could set up to 7.5 at 180
Suggestions?
dreracecar:
Always ran the 33 12 15 on a 10" rim and never once had issues. Ran both 7.50 and 7.0pro with the same tire. With GY's straight numbers signify high growth comp tire, listings that include numbers with ".5" are door car tires that do not grow.Compounds dont matter unless you change tires every event, I ran whatever they had in stock and ran them for 2-3 years.
Cracking along the edge of the sidewall where the compound tread rubber ends, is normal
GlennLever:
So these are the cracks I am talking about, I have wet the sides of the tire and then used photo shop to up the contrast so you can see them.
They are all the way around the tire and through the lettering on the tire.
Are you saying I do not need to worry about this cracking?
Below is a scale of the the compound of Hoosier tires. Currently I am in the middle of the scale and remember I am a low HP vehicle. Hoosier is saying that I will dead hook if I go to the D05 compound tire.
Glenn
Paul New:
Why don't you buy a set of the D2585 GoodYears that Jon has specially made? They are 31 x 12 -15
GlennLever:
--- Quote from: Paul New on March 01, 2017, 06:04:36 PM ---Why don't you buy a set of the D2585 GoodYears that Jon has specially made? They are 31 x 12 -15
--- End quote ---
Those would be narrower than what I am currently running, I do not know the circumference, and I do not, as yet, know how soft they are.
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