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This is why you don't run low profile tires
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http://ecomodder.com/forum/attachmen...1&d=1443666478 I think that was a 22 or 24 inch wheel. Its sitting centered on a proper 16 inch tire. Caused by a stone on the road inside a construction zone. Could happen to any one who drives through road work. The road work is in town and has 25 and 30 mph "construction zone" speed limit, it did not happen on the highway. |
OUCH! Yep, i'll admit that higher profile tires, and more recently tires wider than the rims have saved me from many a curb rash.
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:) I just got new 15" wheels to replace my factory 16's. More sidewall, less metal. Much less weight is the main reason I got them - 11 lb each instead of 17. Also, the tires are cheaper in this size. They were on sale so the cheaper tires paid off half the price of the wheels. Next time I get tires it'll pay off the rest. Win, win, win.
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Going with a wheel inch wider than stock this shouldn't happen.
This guy went from 17 or 18 (the largest rim size a truck or SUV will leave the factory with) to a 24. To get the same effect on a car you would have to go from 14 or 16 inch wheels to about a 20. |
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I have factory 20" wheels on my Aspen, I have seen factory 22" rims on lots of caddis and other GM suvs. I bought a set of 17" wheels for it for "winter" but will probably run then most of the year unless we are taking a long highway trip. They have a pretty aggressive all-terrain tread while the 20s have regular highway tread.
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That makes sense because that rim appeared to be GM equipment.
And that is pretty bad because that means it not a cheap Chinese wheel made out of recycled beer cans. |
It makes as much sense to say, This is why you don't drive over stones in the road.
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I still don't understand the allure of gigantic rims + rubber band tires. I think they look stupid. |
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Thank goodness those of us here at Ecomodders don't have to worry about such petty things.:rolleyes: |
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In defense of the low profile tires, my Aspen handles much better with the 20's compared to the 17's but it's only really noticeable if I was autocrossing the thing. Then again I was the only guy with a pickup at the autocross events I entered LOL! |
If I was running a 20-24" rim, you can bet that I would have it wrapped in a 35-40" tire. No rubber bands here, no sir.
http://i.ytimg.com/vi/-TxPT48sFv0/maxresdefault.jpg(37x13.50 on 22x14s) Yes sir! :D |
That's not low profile, that's just gigantic.
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I would not put it past GM to lie through omission on something like that.
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The over all #1 thing you can do to a 3rd generation Camaro like mine or firebird or T/A to increase the lateral skid pad G forces the car will hold is to put 17 inch wheels on it. But you still continue to run a 26 to 27 inch over all diameter tire (not exactly rubber bands). You can go larger than 17 but it become hit or miss with that platform for some reason. |
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Super low profile tires are the stupidest thing ever. Is there a handling benefit? maybe a very small one, at the expense of a harsher ride. I just can't see going any lower than a 50. And people that go lower than that on a truck should be beaten. It looks like ****.
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It's merely the only thing I could think of in favor.
The best turn-in I've had was on 145/15s on 5.5" rims. But they couldn't keep up with the brakes (downhill in the mountains), so I went to 165-50/15. |
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But that's not as funny looking as the people who put 30" wheels on their Cadillacs. I hate this trend because it makes buying smaller wheels and tires so hard :( |
People pay for bragging rights.
What about the weird trend of having wheels tilt inward? What is the possible benefit of only riding on one corner of each wheel? |
Race cars use a lot of negative camber for cornering. but it has turned into a thing to do.
https://upload.wikimedia.org/wikiped...berCar1960.jpg http://ecomodder.com/forum/showthread.php/efficient-soapbox-32441-7.html#post489465 |
Big wheels, there's very little benefit unless you're running humongous brakes.
Thin tires, you get more precise steering response, less wiggle in transitions, and the *perception* of better handling, whether you have more grip from the tires or not. But you also get a godawful ride. I once gladly gave up the extra performance from my 205/45 R-comps when switching to 205/50 tires (same model, just a different profile) for the extra cushioning and pothole protection they gave. - It must be noted that much wider tires actually have more sidewall per aspect ratio. But anything with a 35 aspect ratio is bound to be ridiculously short. |
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Lots of negative camber does help in cornering because the car puts all the weight on the outside and actually ends up with even camber in a hard corner. It make the outside tires way off but there isn't much weight on those tires. A circle car that only turns one way can be set up with negative on one side and positive on the other but a car that has to turn right and left will just run negative camber all around.
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So there is a benifit. I wasn't talking about the car in the picture but any car set up for competitive SCCA racing will have visible negative camber on the front and possibly on the rear if the rear is adjustible.
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Larger-diameter wheels allow bigger brakes, and when keeping the width and overall-tire-diameter constant, reduces weight, all of it unsprung and revolving.
Lower-profile tires improve the ability of the wheel to control tread movement. The benefits are worth ihe once-in-a-trillion-miles inconvenience, which is all this single fluke incident really is. Don't blame the tire for the driver's clueless irresponsibility. You want to go back to 195/75R14x6s on your Camaro, with the 10.5" single-piston floating-caliper brakes it requires? Go for it. I'll be doing far better with 295/35R18x10.5s over 14" rotors with Brembo 6-piston fixed-calipers. |
Actually larger diameter wheels are heavier and have higher moments than smaller wheels, keeping the overall diameter and width constant. But they do allow bigger brakes and better tire control, that much is true, and more important in competition.
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Metal is generally heavier than rubber and air.
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In an earlier thread I had sources to show that a forged aluminum Centerline wheel is at parity with rubber and air. Everything else is heavier.
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I wondered if I could find it, but gave up when I saw that. |
http://ecomodder.com/forum/showthrea...tml#post361749
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http://hight3ch.com/wp-content/uploa...-32-wheels.jpg |
You sure could fit some huge brakes on that "chariot" now. Going to need them to stop that huge rotating mass.
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