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Old 01-07-2010, 10:13 AM   #421 (permalink)
3-Wheeler
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Quote:
Originally Posted by Nerys View Post
ahh so Cr is coefficient of rolling resistance or something like that?
Hi Nerys,

Yes, that is correct. Crr stands for Coefficient of Rolling Resistance.

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Note that Crr does not simply imply tires, but all the moving components in the drive train and so on.

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As our vehicles are optimized in aero shape, the Crr will stand out more.

I expect more manufacturers to offer low Low Rolling Resistance (LRR) tires.

Same thing about motor oils; they have been getting thinner in newer vehicle releases.

Jim.

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