• This section is for help and assistance with 2018 and NEWER Buick Regals. If you need assistance with a 2011-2017 Buick Regal, CLICK HERE. If you need assistance with a 2010 or older Buick Regal, CLICK HERE. This notice may be dismissed by clicking the X in the right corner.
  • Car enthusiast? Join us on Cars Connected! iOS | Android | Desktop

20” BBS wheels installed!

That is a HUGE improvement over stock and really makes the car look so much better. I know fitment on these cars can be a pain but I'm curious if you intentionally went with a 9.5" width and a 235 tire for the stretched look or is the tire width limited by clearance at the inner strut and/or fender and that was all you could fit?
 
Pathy01 said:
That is a HUGE improvement over stock and really makes the car look so much better. I know fitment on these cars can be a pain but I'm curious if you intentionally went with a 9.5" width and a 235 tire for the stretched look or is the tire width limited by clearance at the inner strut and/or fender and that was all you could fit?
Click to expand...

The two tires sizes I found most near stock overall diameter were 235 and 265. With the aggressive offset, and with the likelihood of lowering in the future, the 265 was not a good choice. The 235 is .1% different over stock and not at all stretched (by my definition at least) on the 9.5 wheel. In fact, it sits nearly perfectly flush. Then again, you’re talking to a guy that used to put 205s on 11” wide Porsche wheels...now that’s a stretch! 😂
 
Bald Regal said:
The two tires sizes I found most near stock overall diameter were 235 and 265. With the aggressive offset, and with the likelihood of lowering in the future, the 265 was not a good choice. The 235 is .1% different over stock and not at all stretched (by my definition at least) on the 9.5 wheel. In fact, it sits nearly perfectly flush. Then again, you’re talking to a guy that used to put 205s on 11” wide Porsche wheels...now that’s a stretch! 😂
Click to expand...

Yeah, my idea of stretch is where the tread width is narrower than the wheel width, even if the tire is even right at the edge of the wheel. A 235 is only around 8.5" wide at the tread so it's an inch narrower than your wheel. I see in the pics how at the lip the tire is somewhat flush, but the sidewall is then stretched inward toward the narrower tread. I'm curious if a 265 would fit with the right offset. The aggressive offset wouldn't likely be the problem as it will help with strut side clearance which I think is probably where the challenge will be. I believe the GS uses a 245 and we know that manufacturers don't push the limits, so it'll probably just take the exact right specs to make it work.
 
Pathy01 said:
Yeah, my idea of stretch is where the tread width is narrower than the wheel width, even if the tire is even right at the edge of the wheel. A 235 is only around 8.5" wide at the tread so it's an inch narrower than your wheel. I see in the pics how at the lip the tire is somewhat flush, but the sidewall is then stretched inward toward the narrower tread. I'm curious if a 265 would fit with the right offset. The aggressive offset wouldn't likely be the problem as it will help with strut side clearance which I think is probably where the challenge will be. I believe the GS uses a 245 and we know that manufacturers don't push the limits, so it'll probably just take the exact right specs to make it work.
Click to expand...

235mm is 9.252” bruh 😂
 
Not sure if you're trying to drive me wrong, but here are the specs including tread width for both tires I found in your size. You'll see tread width is not the same as the section width, nominally or measured.
15142
15143
And here's the spec on a 265 which has a 9.5" tread width that matches a 9.5" rim.
15144
 
Last edited:
Got my tires scratched hardcore on my GS this week, they accepted fault and let's just say I'm getting a sweet deal on some new rims, these are coming in about 2 to 3 weeks.
 

Attachments

  • 20190418_170729.webp
    20190418_170729.webp
    242.4 KB · Views: 57
liuby33 said:
Anyone of you guys found the 5x115 pattern rather rare in aftermarket? I have trouble finding any good-looking name-brand wheels with the same spec.
Click to expand...
Yes, it's not the most common pattern out there. TireRack hasn't confirmed fitment on the TourX, but you can select the Sportback AWD and get a decent number of options that will fit. You can also do a search for something along the lines of 20x9 5x115 and look at the sites that come up. Just be aware and double check the actual specs. Another option is to go with something custom with the specific diameter, width, bolt pattern, offset and center bore you want. For that option, I'm currently looking at Forgestar, specifically the CF10 as I'm a big fan of clean, symmetrical design wheels. A great tool for comparing stock wheel/tire specs to aftermarket options is willtheyfit.com which will let you see impact to strut clearance, outward projection and total diameter.
 
liuby33 said:
Anyone of you guys found the 5x115 pattern rather rare in aftermarket? I have trouble finding any good-looking name-brand wheels with the same spec.
Click to expand...
Yeah at my tire shop in town I had 2 choices for rims... but I got what I wanted.
 
no-pistons said:
What is the offset?
Click to expand...
I looked at what is available for real estate under the tour X wheel well.

A correct fitting wheel is hard to find for the TourX.
18” diameter works as this gives me a good selection of tire offering, more so than 19" or 20" tires.

I took a good look at the fitment of the OEM wheels and was surprised that the TourX OEM wheels are stuffed in there pretty tight.

18 x 8 wheels with 32 - 42mm offset or 18 x 8.5 with 32 -38mm offset is a good fit as tire wheel clearance to the inside strut is real close. There is not a lot of room with the fender cladding either.
The load rating of the wheel should exceed that of the tire as a minimum. OEM tire is rated 1609 Lbs.

These wheels work:
Avant Garde Wheels | M310 | AG Classic
Contact:
Jason Tung [mailto:jason@getyourwheels.com]
 
Last edited:
Pathy01 said:
Yes, it's not the most common pattern out there. TireRack hasn't confirmed fitment on the TourX, but you can select the Sportback AWD and get a decent number of options that will fit. You can also do a search for something along the lines of 20x9 5x115 and look at the sites that come up. Just be aware and double check the actual specs. Another option is to go with something custom with the specific diameter, width, bolt pattern, offset and center bore you want. For that option, I'm currently looking at Forgestar, specifically the CF10 as I'm a big fan of clean, symmetrical design wheels. A great tool for comparing stock wheel/tire specs to aftermarket options is willtheyfit.com which will let you see impact to strut clearance, outward projection and total diameter.
Click to expand...
This is the website I have been using on wheel & tire fitment for a couple years now. I like that it automatically provides +1 and +2 sizing as well as determines tire circumference percentages (and bases recommendations on that criteria).

Reference guide for car wheel and tire dimensions such as size, offset, PCD

Looks like 255 is a good width to explore - I haven’t crawled under the car yet to take a few measurements on strut and fender clearance, but you can dial all that in using this tool.
 
Did I miss it or is nobody sharing their offset numbers? 🙂
I went with BBS 18x8's with 36 offset and they appear to be the perfect stock replacement- and even free up a tiny bit between the inner sidewall and the strut u front. Next time I get tires, I'll probably go wider but figured I'd run the stock tires off first.
I didn't check yet, but I imagine there's a fitment thread going somewhere- if not, maybe one should be started and stickied.
 
8 x 18 or 8.5 x 18 wheels with a 32 to 36 mm offset does not box you in on tire selection and has other goo reasons to stay with this size.
 
You must log in or register to reply here.

Cars Connected in the Apple App Store Cars Connected in the Android App Store
Great products:
- VIN Check
- Windshield repair kit
- Clean your leather!
- Safe Emergency Charging
- Chemical Guys HydroSpeed Ceramic Quick Detailer
- Chemical Guys HydroCharge High-Gloss Hydrophobic SI02 Ceramic Spray Coating
- Get a dash cam!
- Auto Buyers Market
- Foreign invaders vs USA gangs
Protect your vehicle from code scanners #ad

Share this page

Back
Top