Originally posted by H-A Stud
:doh: 18in rims with 35 sized tires are the same diameter as 13in rims with 65 sized tires. 
the reason why you will be slower is because metal is heavier then rubber. The more metal that replaces rubber makes it heavier.
h:
true, but how many people ride on 18's with 35 sized tires.
what I said does have some validity :fawk: