<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by greenhummer:
Seems like I've really hit a sensitive nerve on this stock tire/wheel thing. It's almost like I'm a Prius owner looking to enrage some H2 owners. Fact is that just last week I got flipped off by some jackass university student. He carefully chose to flip me off from across the street and not in front of me.
If the weight combination is so negligible then why do guys with (heavy) cast 24" wheels find it harder to accelerate/brake? Rotational masses count way more than just vehicle mass. I could figure out the physics for you but I'd rather get my job done since I've got real work to do. In moving up wheel sizes, the goal is to go with a better quality forged alloy wheel that is lighter than the stock cast wheel. If I just want to add bling then I'd get whatever cheap cast wheels are out there.
Does anyone "get" that having a smaller sidewall will decrease the chance of a blowout given that the sidewall has a smaller height (distance from road to wheel lip) and is correspondingly stiffer?
I guess not. You're right. I give up.
Greenhummer
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You need to go back to physics class. You seem to be incapable of comprehension. Rotational mass actually makes a lot of difference, but it is a factor of the overall picture. A 25lb overall saving at each wheel on a 7Klb truck is not going to provide you with a noticeable change in stopping distance. 25lbs on a 4Klb vehicle would be more noticeable. Understand now. There is a window that you are working within when dealing with the H2 and it's weight, aero, etc. override many of the "common" tweaks people do on other vehicles.
As far as your sidewall thoughts, go buy MT/Rs that have re-inforced sidewalls. Or better yet, put these on and you want have to pretend to worry about blowouts.
