John Lussmyer via EV wrote:
My problem is finding a LRR tire that fits a Ford F-250 truck...
Interestingly enough, I've read that they *do* make low rolling
resistance tires for heavy trucks. Fuel economy matters a lot to
long-haul truckers!
Now, how "low" their LRR tires are, I don't know. Normal car tires range
from 0.006 to 0.015 rolling resistance. That's the ratio of the force
needed to roll it divided by the load on the tire. I.e. a tire with a
0.01 RR means it takes 1 lb force to push for every 100 pounds of
vehicle weight.
--
A designer knows he has achieved perfection not when there is
nothing left to add, but when there is nothing left to take away.
-- Antoine de Saint Exupery
--
Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm
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