Lace wheels, will 235/75 fit?

I have lace wheels on my 96 country and its time for tires. There are 225/70's on there now I would like to go to 235's either 75 or a lower profile 70. this is my D/D so highway tires are needed. Will these fit on th ewheels? will they fit without impacting the speedo? Any advice?

jim

I have a 88 XJ with the stock 15 x 6 inch rims. You will need to find out what size is the rim - 15 x 6 or 15 x 7. I looked at teh BFG AT tire spec sheet and found:

The largest tire for a 15 x 6 rim is the LT235/75R15.

The largest tire for a 15 x 7 rim is the 33x10.50x15.

Once you know your rim size then you can determine how big a tire but as long as your rime is 15 x 6 or wider you can mount a LT235/75R15 tire on it.

I have a 99 with 15x7 rims, and put 30's without a problem. I currently have 235's, it came with 225 stock.

jchampoux said:

I have lace wheels on my 96 country and its time for tires. There are 225/70's on there now I would like to go to 235's either 75 or a lower profile 70. this is my D/D so highway tires are needed. Will these fit on th ewheels? will they fit without impacting the speedo? Any advice?

jim

Click to expand...

The speedo effect would be negligible. At 70+ mph the difference would be max 2-3 mph. I think you can find out this info at www.4lo.com You can also look into a different speedo gear, but I wouldn't worry about it.

I'm pretty sure its a 15x7 wheel.

So far this is what I have been able to find out, both from you guys and searching on the web:

The lace wheels are 15x7

the largest tire that will fit on this wheel, although not necessarily on the cherokee without rubbing is:
30 1/2”, these are P265/75R15

The largest tire that I can fir on these wheels AND on the Cherokee without rubbing is:
29”, these are P235/75R15 or P255/70R15

The OEM stock tires are:
27 1/2” these are P215/75R15 or P225/70R15

The OEM stock optional tires were:
28 1/2”, these are P225/75R15 or P245/70R15

Any more info? Is anyone running P265/75R15’s how about P255/70R15’s


Jim

jchampoux said:

So far this is what I have been able to find out, both from you guys and searching on the web:

The lace wheels are 15x7

the largest tire that will fit on this wheel, although not necessarily on the cherokee without rubbing is:
30 1/2”, these are P265/75R15

The largest tire that I can fir on these wheels AND on the Cherokee without rubbing is:
29”, these are P235/75R15 or P255/70R15

The OEM stock tires are:
27 1/2” these are P215/75R15 or P225/70R15

The OEM stock optional tires were:
28 1/2”, these are P225/75R15 or P245/70R15

Click to expand...

Your info is mostly incorrect.

The lace wheels are 15x7. The largest tire that should be used on that rim is a 10.5" width, which would include both 31x10.50R15 and 33x10.50R15. With minor rubbing you can actually run the 31x10.50 size on a stock XJ, but not the 33x10.50 size. On lifted XJs, there are people running 32x11.50s on stock 15x7 rims and they don't seem to have any problems aside from the large backspacing causing a lot of rubbing on the control arms and springs with the fat tires.

As to OEM tires, Jeep never sold any XJ with 15" 70-series tires. They used 225/70R16 on the 2000 and 2001 Classic and LImited to keep the overall diameter the same as the 225/75R15 tires used with the 15" rims on the lesser models.

Stock tires on the XJ have ranged from 195/75R15 up to 225/75R15, always (except as noted above) in 75-series. For a '96, I would have expected the stock tires to be 225 but they might have been 215.

The 225/70s you have on there now are an inch smaller than what came on your Jeep. That means your speedometer is probably not very accurate ... you are probably not going as fast as it reads.

The jump from stock 225/75R15 tires to 235/75R15 is a change of only a couple of percentage points. Most of the stock speedos seem to read a few percentage points fast anyway, so running 235s will probably make the speedo more accurate. Going from 225/75 to 30x9.50 is a 6% jump, and going from 225/75 to 31x10.50 is a 10% jump.

IMHO 235/75R15 is the ideal size for a mostly stock, mostly street-driven XJ.

Thanks Eagle, IMHO, YHO is good enough for me.

jim

Eagle, I just checked my build sheet:

| TBCS Spare Tire - Compact
| TBLS Spare Tire - Inside Mount
| TRVP Tires - P225/70R15 Eagle GA OWL
| TZAP Goodyear Brand Tires
| WJGP Wheels - 15" Aluminum
| WLZC Wheels - All Aluminum

Notice that the tires were in fact 225/70's

Is yours a 2wd? I thought they only put those on the 2wds? I could be wrong though.

So would a 235/70 fit? I have a 95 Country and I've been thinking about running this size since its wider and only slightly taller than the stock 225/75/15s.

My 96 is a 4 dr 4 wd country.


modifed from Marcus Ohms' site
( http://go.jeep-xj.info/HowtoSpeedoGears.htm#chart )

Metric = Imperial
225/70/15 27.4"x 8.9" *
215/75/15 27.7"x 8.5" *
235/70/15 28.0"x 9.3"
225/75/15 28.3"x 8.9" *
225/70/16 28.4"x 8.9" *
215/75/16 28.7"x 8.5" *
235/70/16 29.0"x 9.3" *
235/75/15 29.0"x 9.3" *
225/75/16 29.2"x 8.9" *
245/75/15 29.5"x 9.6" *
245/70/16 29.5"x 9.6" *
205/85/16 29.7"x 8.1" *
255/75/15 30.0"x 10.0" *
255/70/16 30.0"x 10.0"
245/75/16 30.5"x 9.6"
265/75/15 30.6"x 10.4" *
265/70/16 30.6"x 10.4"
275/70/16 31.2"x 10.8"
265/75/16 31.6"x 10.4"
235/85/16 31.7"x 9.3" *
285/75/16 32.8"x 11.2"
295/75/16 33.4"x 11.6"


jim

jchampoux said:

Eagle, I just checked my build sheet:

| TBCS Spare Tire - Compact
| TBLS Spare Tire - Inside Mount
| TRVP Tires - P225/70R15 Eagle GA OWL
| TZAP Goodyear Brand Tires
| WJGP Wheels - 15" Aluminum
| WLZC Wheels - All Aluminum

Notice that the tires were in fact 225/70's

Click to expand...

"As to OEM tires, Jeep never sold any XJ with 15" 70-series tires..."

I just checked the biuild sheet (window sticker) from my 88 Limited (with those 15x7 lace wheels) and it specs P225/70R-15 Goodyear Eagle GT+4. In fact I still have the factory full-size spare in the back, and that's exactly what it is.

My other 90 Limited has 235/75R15 Michelins and they fit fine.

I just checked my build sheet. Mine did come with 225/70/R15s. I guess I should have checked before I asked. I do remember when the Country's were new a lot of them had Eagle GA's on them. I guess I just assumed it was the 2wds since its a street tire.

Regardless of OEM size, I also have 235/75r15's on my 90 sport. They fit the alum. wheels fine and don't rub even off road. Compaired to my gps the speedo reads about 2-3 mph slow. I can live with that. All and all I am very happy with the size. I would do it. Just my .02

drroadie said:

Regardless of OEM size, I also have 235/75r15's on my 90 sport. They fit the alum. wheels fine and don't rub even off road. Compaired to my gps the speedo reads about 2-3 mph slow. I can live with that. All and all I am very happy with the size. I would do it. Just my .02

Click to expand...

Thanks, 235/75's it is then.
Man did I learn a lot today about tires!

"Oops!" he said, in a still, small voice.

:shocked: :rtm:

I'm not trying to hijack, but I really need to know. Will a 235/70/ 15 fit on a 95 XJ? It came with 225/70s but I don't want it to rub. It has the stock 15x7 lace wheels.
Thanks

Atl XJ said:

I'm not trying to hijack, but I really need to know. Will a 235/70/ 15 fit on a 95 XJ? It came with 225/70s but I don't want it to rub. It has the stock 15x7 lace wheels.
Thanks

Click to expand...

If a 235/75R15 will fit, a 235/70R15 will certainly fit. Same width, smaller diameter

Thanks, I was more concerned about the width than the height since it is slightly wider. I just looked at the a chart that showed the tread width difference and its only 2/10 of a inch wider so I think it'll be okay.
Thanks

Ignore tread width.

The "235" part of 235/75R15 is the cross-section width at the widest point of the sidewalls, measured in millimeters. If the tires are going to rub the lower control arms, that;s more likely to be what causes it. You can take several brands and models of the same nominal size tire (235/70R15 or 235/75R15) and compare them, and you'll find that the tread width varies wildly.