Would a 265/45-16 tire fit on a 16x7.5 rim?

If not, what is the widest tire that would fit on a 7.5 inch rim?

 

It'll "fit"... at least one DS Type R driver is running 275 Hoosiers on stock 15x6 wheels.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Xian &raquo;</TD></TR><TR><TD CLASS="quote">It'll "fit"... at least one DS Type R driver is running 275 Hoosiers on stock 15x6 wheels.</TD></TR></TABLE>

really.. well I might just have to give it a shot.

 

I do NOT recommend mounting a 265/45-16 tire on a 16x7.5 rim, especially for track use. Most 265/45-16 tires (e.g. Kumho V710) are approved only for mounting on rims 8.5-10.0 inches wide. When you mount tires on rims significantly narrower than approved, they are likely to build up excessive stress and heat in the sidewalls. Bad idea.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">I do NOT recommend mounting a 265/45-16 tire on a 16x7.5 rim, especially for track use. Most 265/45-16 tires (e.g. Kumho V710) are approved only for mounting on rims 8.5-10.0 inches wide. When you mount tires on rims significantly narrower than approved, they are likely to build up excessive stress and heat in the sidewalls. Bad idea.
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what would be the widest to use? it is the V710's that I found a good deal on, but wasn't sure about the size either.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92integraVTECgsr &raquo;</TD></TR><TR><TD CLASS="quote">what would be the widest to use? it is the V710's that I found a good deal on, but wasn't sure about the size either. </TD></TR></TABLE>

That depends on what car it's for, how much room is in the wheel wells, etc.

You can look up specs (including approved rim width) on the tire manufacturer's website and/or the website of retailers like the Tire Rack.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">

That depends on what car it's for, how much room is in the wheel wells, etc.

You can look up specs (including approved rim width) on the tire manufacturer's website and/or the website of retailers like the Tire Rack.
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And for autoX use, it's not at all uncommon to shoehorn on the widest tire that will fit. Especially in stock classes where wheel width is limited.

If this is an autoX car, then my advice would be to fit the most rubber possible. Turn-in will suffer but ultimate grip will be higher (again, D-Stock Type R's can fit 275's on 15x6 wheels). If you're doing track days or club racing, I'd narrow the search to R rubber in the 225-245 width.

 

do you have a pic of a 275 on a 6 in rim ? I can't believe it !

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Xian &raquo;</TD></TR><TR><TD CLASS="quote">

And for autoX use, it's not at all uncommon to shoehorn on the widest tire that will fit. Especially in stock classes where wheel width is limited.

If this is an autoX car, then my advice would be to fit the most rubber possible. Turn-in will suffer but ultimate grip will be higher (again, D-Stock Type R's can fit 275's on 15x6 wheels). If you're doing track days or club racing, I'd narrow the search to R rubber in the 225-245 width.</TD></TR></TABLE>

I can't even imagine how it is possible to mount a 275 on a 6" wheel. I would like to see that.

 

I run 265-width Goodyear all seasons on my 350z (8 inch wheel) and it fits perfectly. Most performance tires will run wide, so a 265 Hoosier/Falken/Kumho will be more like 275mm wide. Hoosier does not reccomend running an overly wide tire, you just end up paying for more rubber and not getting any more grip due to rollover.

 

Nope, I don't have any pics as I don't run autoX often anymore. There are several folks running 275/35 Hoosier A6's on 6" wide wheels in stock class. Again, it's not perfect and wider wheels would be a hell of a-lot better but when the rules don't allow it, you work with what you've got.

 

I believe some of the miata guys sell their soul to squeeze 275's on to their 6" wheels too.

More information can be found in the SCCA and NASA forums.

 

It's actually quite easy to mount a 275/35/15 hoosier on a 15x6 wheel. The guy who owns FunHondas can mount a pair up in under 15 minutes. They look no worse then the 225's he mounts on a 5" wheel.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solo-x &raquo;</TD></TR><TR><TD CLASS="quote">It's actually quite easy to mount a 275/35/15 hoosier on a 15x6 wheel.</TD></TR></TABLE>

Hoosier recommends that size be mounted on a wheel 9.0-11.0 inches wide.

When something sounds like a REALLY BAD IDEA, it usually is, and you often find out the hard way.

EDIT: See below for reasons why it might be okay for autocross only situations.



Modified by nsxtasy at 3:03 PM 9/9/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">

Hoosier recommends that size be mounted on a wheel 9.0-11.0 inches wide.

When something sounds like a REALLY BAD IDEA, it usually is, and you often find out the hard way.

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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Xian &raquo;</TD></TR><TR><TD CLASS="quote">

And for autoX use, it's not at all uncommon to shoehorn on the widest tire that will fit. Especially in stock classes where wheel width is limited.

If this is an autoX car, then my advice would be to fit the most rubber possible. Turn-in will suffer but ultimate grip will be higher (again, D-Stock Type R's can fit 275's on 15x6 wheels). If you're doing track days or club racing, I'd narrow the search to R rubber in the 225-245 width.</TD></TR></TABLE>

 

Yeah, I suppose if you're using them ONLY for autocross, there are a few specific reasons why you might want to do so:

- you're limited to stock wheel widths if you're in a stock class

- you're only going at low speed for short periods of time, so the tires don't have that much chance to build up speed

- if anything bad happens, you're not likely to hit anything and do any damage

I still wouldn't recommend it for anywhere other than an autocross course, though.

 

the wheel would probably feel real mushy like you were turning in mud.

 

It must look like **** too...

 

So they ran 275's on 6 in rims?

let's not even talk about exploding. go try mounting 275 on a 6 in rim you will understand why ds type r drivers are laughing...



Modified by nsxtasy at 2:25 PM 9/9/2008

 

For the OP, what are the 16X7.5 wheels your using?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheMidasTouch &raquo;</TD></TR><TR><TD CLASS="quote">For the OP, what are the 16X7.5 wheels your using?</TD></TR></TABLE>

Kosei K1's

 

275s on 6 or 6.5 inch wheels is insane! i had 225's on my 6.5s and i thought they were stretched to hell. but yeah...putting that wide of a tire on a 7.5 is still insane. i work at a tire dealer and install them every day and ... i dont even think i would attempt to mount that. would def cause premature failure to the sidewall if not the bead too. i had a 10 ply with a weak sidewall blow up on me the other day with like 60lbs in it..**** hurt. i would NEVER try a 275 on a 7.5

edit : i just noticed that you guys were talking about 265 on 7.5, not 275, but still i dont think thats a good idea.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GroundZer0 336 &raquo;</TD></TR><TR><TD CLASS="quote">275s on 6 or 6.5 inch wheels is insane! i had 225's on my 6.5s and i thought they were stretched to hell.</TD></TR></TABLE>

I thought the word "stretched" was usually used for wheels that are too wide for the tire, not tires that are too wide for the wheel...? No biggie either way, we know what you're talking about.

 

yeahhh...i know. it just kind of came out like that. wouldnt having that wide a tire on a skinny wheel put undue stress on the wheel as well?

 

I thought I was crazy for trying to fit 245's on a 7.5 but 265 !!!