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Wheel/ Tire fitment question. (Can't find answer)

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Old 06-24-13, 03:55 PM   #1
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Default Wheel/ Tire fitment question. (Can't find answer)

This will sound like a weird fitment question but...
How well would 15x10 wheels with 5" backspacing and 295/50/R15 Tires fit on the back of my 400?
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Old 06-24-13, 09:55 PM   #2
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This will sound like a weird fitment question but...
How well would 15x10 wheels with 5" backspacing and 295/50/R15 Tires fit on the back of my 400?
26.6" diameter, 0 offset and 295 width won't fit without some serious fender mods, for sure...

For comparison, without running silly amounts of negative camber, on my old car 295/30-19's rubbed slightly with rolled fenders, -1.5 degrees camber and +35 offset wheel... Your fitment will be 3/4 an inch larger diameter and stick out an inch and a half farther than mine...

What are you trying to do? most 295/50-15 tires are terrible and designed for old school muscle cars with low speed ratings
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Old 06-25-13, 12:04 AM   #3
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26.6" diameter, 0 offset and 295 width won't fit without some serious fender mods, for sure...

For comparison, without running silly amounts of negative camber, on my old car 295/30-19's rubbed slightly with rolled fenders, -1.5 degrees camber and +35 offset wheel... Your fitment will be 3/4 an inch larger diameter and stick out an inch and a half farther than mine...

What are you trying to do? most 295/50-15 tires are terrible and designed for old school muscle cars with low speed ratings
Was yours an SC400?
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Old 06-25-13, 03:47 AM   #4
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yes sir......
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Old 06-25-13, 05:21 AM   #5
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yes sir......
That's weird that I'd need major modification to my fender then since my current wheels in the rear are 16"x10" with 245/45/16 and they're nowhere near being close to touching fender, or anything else for that matter.
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Old 06-25-13, 05:43 AM   #6
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Let's walk through why... It isn't the wheel size so much as the off set and tire size... Most all Lexus vehicles run somewhere around +50 offset from the factory, common aftermarket offsets are around +35... So, without knowing the backspacing of your current 16*10, let's say its +35. That means a 15*10 with a 5" backspace which Is in effect a 0 offset, already sits almost an inch and a half outwards from your current wheel. Then, add a tire that is another two inches wider and also 2 inches larger in diameter than you are currently running and you are bound for issues... Change the offset back to +35 or 40 and you st least have a chance, this would be about a 6.75" backspace... From the outside sidewall of your current tire, measure straight out 2.5" and that is close to where your proposed figment would sit...
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