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Old 03-05-2013, 11:41 PM   #20 (permalink)
blownb310
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Quote:
Originally Posted by diesel_john View Post
Since this thread started 3 yrs ago i have bored out two Ford space savers to VW center I.D. and measured no mileage improvement. They were T115/70D14's which may have a higher rolling resistance. Now switching back to 155r13's.
I tried space savers too. The problem is that they are not radial tires, so they have a higher rolling resistence. Anyone ever try motorcycle tires [on something light like a Metro]?
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