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Date: Thu, 15 Feb 2001 19:17:21 -0500
From: Bob <uctraingnopsamanet.com>
Subject: Re: Stock Viggen rims - marshmallowy soft


On Thu, 15 Feb 2001 22:04:46 GMT, "Plum" <nospamnopsampam> wrote: >I know, but it's pretty fun floating around on the highway! > >Btw - I hefted one of the 17s with a tire on it (all of 'em, actually), and >there really not that heavy at all. In fact, I'd be willing to guess that >they're lighter than the 16s + snow tires that I have now. The 16s are of >the 9-5 10-spoke variety, with swanky Michelin snow treads. The rim of a 17" wheel is located further from the center of the hub. This increases the force needed to get the wheel moving. According to a "racing" acquaintance who did some calcs, it increases the force required by 1% per wheel. If the 17" wheel and tire is heavier, it requires still more of an increase in force. Additionally, you are adding to unsprung weight, which is the bane of handling design. Now, all that said, some wheels are heavier than others in the same size. They vary from incredibly light to incredibly heavy depending on alloy and spoke design. So, there are a lot of variables to consider. I don't like 17" wheels in snow country, as the roads are just not that good. Maybe if you live in one of the non-freeze states they make more sense. bob

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