92 Ty 1173
Active member
I have 285/35/18 rears and need to match the front. Are 255/40/18 the right match? I know REPOST, use the search, I tried there is alot of threads with tire sizes in it.
Same old Q
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92 Ty 1173
Active member
Re: Same old Q
What are the important #'s, radius,diameter, or circumference??
What are the important #'s, radius,diameter, or circumference??
92 Ty 1173
Active member
Re: Same old Q
Bump
Bump
Don W.
Stab it and steer it
Re: Same old Q
What matters, if you want to be technical, is so-called rolling radius. The distance from axle center to the pavement. This takes into account air pressure, tire deflection and everything. Should be within 2%, hopefully less. Not sure where that number comes from, might be a leftover from big trucks with their dual drive rear axles. I would imagine we would want less. I'd bet the info is buried at Borg-Warner somewhere.
What matters, if you want to be technical, is so-called rolling radius. The distance from axle center to the pavement. This takes into account air pressure, tire deflection and everything. Should be within 2%, hopefully less. Not sure where that number comes from, might be a leftover from big trucks with their dual drive rear axles. I would imagine we would want less. I'd bet the info is buried at Borg-Warner somewhere.
92 Ty 1173
Active member
Re: Same old Q
18's, the ones in my avitar but I have 18's for the front now.
TYTILIDIE said:
18's, the ones in my avitar but I have 18's for the front now.