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Old 07-20-2013, 02:56 AM   #11 (permalink)
GreenHornet
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Upsized wheels can have a benefit on MPG if done properly ie they are lighter such as going from a a heavy stock 13" steel wheel to a lighter weight 15" alloy wheel. However often times many people make the mistake of getting a lighter and larger diameter alloy wheel and not checking on tire weights and options. So they may get the lighter weight wheel but end up with a heavier tire negating the potential benefits! If your goal is MPG then you want a light weight, tall, and narrow tire. If your goal is a street racer and mpg is of no concern then you will want the extra meat on the pavement so go for a wider wheel and tire selection but still pay attention to both the wheel and tire weights as they both make a difference in performance!

GH.

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