Re: 160 Tire on a 4.25" Rim? (Eric Landstrom)
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Quote, originally posted by Eric Landstrom »</TD></TR><TR><TD CLASS="quote">A 160 on a 4.25 is too big. You're likely to never use all of the tire (unless you low side). Besides I told Darren Hicky to have 150s on hand at the DCTC.
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I don't know if that is your speculation or testing results but a 160 is optimum for a 4.25" rim according to my experiences. I've used Avon, Pirelli, and Maxxis, all 160 DOT tires, on a 4.25 rim and they were perfect, wears right to the edge and the tire keeps the profile it was designed to have. A 5.0" is much harder to find DOT tires for, I'm using a 207gp in a 170 on my 5.0" but it required swingarm modification to fit. The 160 was absolute crap on the 5.0" rim, it stretched the tire out which flattened the profile and caused heavy/slow steering. When you got close to the point of the pegs dragging you ran out of tire and lost the rear. The correct size tire for your rim width is very important.