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Old 05-22-2011, 03:46 PM   #9 (permalink)
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Originally Posted by bwilson4web View Post
Engineering often comes down to making choices: good, fast, cheap, pick two of three...... The tire manufacturers are doing everything they can to block it which doesn't make a lick of sense.....
Actually, the tire manufacturers are doing what they can to support the NHTSA proposal, but NHTSA had a hiccup.

They wanted to do RR Force, which makes larger tires look worse for RR. but if RRC (Rolling Resistance Coefficient is used larger tires are better - which is the way most folks would look at it. The GSA asked NHTSA to reconsider - and that was a year ago. In the meantimm, NHTSA has gotten tied up with a lot of Toyota issues!
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