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Old 10-23-2007, 12:21 PM   #1 (permalink)
vvv90
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Car: 2006 300C SRT-8 2005 Ram SRT-10 I love gas guzzlers
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20" vs. 22" wheels and rotational mass

So it's come down to me really wanting to get 22" wheels for my 3SRT, but I always hated the thought of losing performance.

The biggest misconception is wheel weight. The overall wheel weight doesn't have as much to do with accelleration, or lack there of as rotational mass does.

It's simple physics really, the further away from the hub that a majority of the weight is, the more energy it takes to move it.

Just like spinning around on a tire swing when you're a kid. If you pull your legs in you go faster yet your overall weight never changed.

22" wheel hoops are further away from the center and a majority of the weight of the wheel.

However, the overall diameter of a 22" wheel tire combo is probably about the same as my stock 20" wheel tire combo.

I'm just trying to figure out if it's a moot point and that if there's some way to determine the rotational resistances comparatively.

I know there's very heavy 22" wheels out there that look pretty....Not interested....I'm assuming I'll have to go with a very strong forged light weight (and expensive) wheel.

But how expensive I wonder?

Does anybody have any idea how I can determine this? Is there any wheel makers out there that have these facts?

Thanks!
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