get 20" razrs in the rear and 22 or 21" razrs in the front...the 18" mx tire just doesnt give you enuff ground clearance to trail ride if there is any logs or ruts at all. and 20" is stock rear size so you won't have to do any gearing change to keep your ratios the same. I have had Zero problems with any maxxis tire.
DEVIN FISHER#56
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