Track width change from rim/tyre change

navigare

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I believe no thread yet has looked at this particular aspect of tyres and rims... I need to know whether BFGs 265/65-18 on Compomotive rims result in a wider track (in an LR4) than the factory 255/55-19s (OEM rims/tyres). No other mods, spacers, etc. Anybody knows? I'm looking at buying property with a very narrow garage access driveway (tall curbs, the walls are not a problem) and even an extra inch on each side would complicate matters.
 

Michael Gain

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I'll start the fun. It's been a while since I've dug into the wheel / tire stuff.

If I remember right, the compos have a lower offset to clear larger tires. While I don't remember it being a lot (+.5") the tires would be the biggest variable. I would safe oversizing doesn't necessarily change the track, but tire pressure would. Less air would create more tire bulge and generate a larger contact patch. I don't think that it would be too bad though
 

navigare

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I'll start the fun. It's been a while since I've dug into the wheel / tire stuff.

If I remember right, the compos have a lower offset to clear larger tires. While I don't remember it being a lot (+.5") the tires would be the biggest variable. I would safe oversizing doesn't necessarily change the track, but tire pressure would. Less air would create more tire bulge and generate a larger contact patch. I don't think that it would be too bad though
Thanks, there would be no bulging, since we're talking in town, with street pressures.
 

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