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Old 07-28-2010, 10:49 PM   #1
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Tire sizes and Cornering

Have 31X10.5X15 Cooper Discoverer ATR's on my Jeep they are a mighty tall tire.Am not looking to do a whole lot of off roading.Would a shorter tire make it handle a little better on the highway?How would the stock tire size effect it?

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Old 07-28-2010, 11:18 PM   #2
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A smaller tire will handle better. Stock size may make you feel more secure. Make sure they aren't overinflated, that will make any tire feel like it's skating across the road.

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Old 07-29-2010, 01:09 AM   #3
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Pressure ok

Thanks for the info. checked my tire pressure yesterday about 35lbs.it's not too skatey feeling but a little big and wonky feeling.These tires are brand new with a lot of meat on them so looks like a I will have them for a while before I can try a smaller size.
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Old 07-29-2010, 08:43 AM   #4
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You might try lowering the pressure just a bit, down to about 30psi, check the contact patch and ride at that pressure. It's been a while since I had 31's but as I recall they felt good around there. What's the MAX psi listed on your sidewalls? I'm guessing you are coming from some small coupe or sedan type vehicle? If so, it takes a bit of getting used to not sitting on the ground when you're driving... Air down a bit and give it some time...
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Old 07-29-2010, 08:47 AM   #5
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Sounds like you filled your tires to the max pressure listed on the sidewall...like InfernoGirl said, if your max tire size on your sidewall says 35, drop yours down to 30ish. That max pressure is for when you have the maximum weight load on your tires, and our Jeeps don't. lol
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Old 07-29-2010, 09:11 AM   #6
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Sounds like you filled your tires to the max pressure listed on the sidewall...like InfernoGirl said, if your max tire size on your sidewall says 35, drop yours down to 30ish. That max pressure is for when you have the maximum weight load on your tires, and our Jeeps don't. lol
I bet it wasn't him, but the tire monkeys who installed them....
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Old 07-29-2010, 09:42 AM   #7
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I have the same size tire and can feel no difference in handling between that and the 235's.
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Old 07-29-2010, 09:48 AM   #8
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I have 31x10.50 15's on my Jeep (BFG AT). They handle pretty dang good...Its no Lotus, but for a Jeep it corners pretty decent...def. do as indicated above, lower the PSI (jeeps are lightweight, and don't require the typical 35psi)
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Old 07-29-2010, 09:50 AM   #9
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Yep, but like I said, I'd bet he's coming from something low to the ground, like a Mustang, or Honda, or something, and never driven anything even remotely like a Jeep....
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Old 07-29-2010, 11:48 AM   #10
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Yeah my last vehicle was a Mazda Miata so it is quite a difference .I'll try a lower pressure the vehicle sticker says 33lbs .My Miata was 30lbs but it was a very nlight car.
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Old 07-29-2010, 02:27 PM   #11
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I have 31 inch BFG's and I run 27 lbs on the street and they are perfect.
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Old 07-29-2010, 09:34 PM   #12
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Quote:
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Yeah my last vehicle was a Mazda Miata so it is quite a difference .I'll try a lower pressure the vehicle sticker says 33lbs .My Miata was 30lbs but it was a very nlight car.
Stock tire size is I think 29"...so that 33lbs is actually too high for the 31's even.
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Old 07-29-2010, 09:49 PM   #13
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lower pressure

Ok I can see how with a bigger tire you would need lower pressure because it is designed carry a heavier load and the Wrangler is not heavy enough to
squash the tire down propperly.Just have to get over the mental block of lowering my pressure that much.

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