Recipe7

I've been doing a little research on the wheel and tire package for my 14 RLX.

I've noticed some posts from some beloved members here regarding their wheel stats.

NB posted his Vossen wheels which were 20x9 with a 35mm offset.

I was looking to get the same sized wheels with these avant garde ones: https://www.elementwheels.com/prodde...=ava-359199blk

Instead of going 20x9 with ET 35mm, I decided to go with 19x9 with ET 35mm. I wanted to maintain the 40 series tires instead of going to 35 on the 20s. I wanted to do 255/40/20 wheels but it would be a 3.5% increase in diamter or something. I decided on 255/40/19 tires, a 1% increase of diameter from the 245/40/19.

My issue(s) is that the stock wheel and rim (19x8 ET 50mm, 245/40/19) is different than the 19x9 ET 35mm and 255/40/19 tire that I'm looking to get. I'm confident that the 19x9 et 35mm wheel in the rear will be fine, I was just more concerned with the 19x9 35mm in the front. Through many posts on wheels here, I am fairly certain there is no problem.

Now, I have not seen anyone getting 255 tires for their 19x9/20x9 wheels. According to many sources, 9 inch width wheels are best on a 255 tire. Also, the stock hub is 64.1mm. The wheels I'm looking at are 72.6mm. This means I should get centric rings right? I read that they aren't required, but doesn't hurt to use them.

I am assuming that a 255 inch tire will be fine on the RLX, but I wanted to get everyone's opinion on the matter. I appreciate anyone's

Recipe7

anyone care to chime?

Limelight

I hope the community can chime in with some advice for you.

I'm pretty darn sure you'd need hubcentric rings to go from 64.1 to 72.6 otherwise it will vibrate like crazy.

There is a thread where someone put 20X9 Vossen CV1's on 245/35/20 and the wheel gap was quite large. If going with 20's, I think the car really needs to be lowered. Considering the suspension issues on the P-AWS model anyway, I wouldn't recommend that and you might notice a difference in feel with a lower tire sidewall too.

I'm considering a set of new wheels this spring/summer and for those reasons, I think I'll be sticking with 19's. I was thinking of going 19x8.5 or 19x10 if that's an option too.

This is a good website to plug in your different specs and see how it changes things:

Rim & Tire Size Calculator. Custom Offsets - Wheel-Size.com

Good luck and please post pics!

RLX-Sport Hybrid

If I could get something that looked similar to the stock rims that were 9.5 inches in diameter so I could use a 275/40/19 tire, that would work out perfectly.

Recipe7

Thanks for the site. Everything shows a 255/40/19 tire should fit fine. However, it still doesn't say anything about fitment on the rear or front. I'm assuming that the website is regarding rear fitment. I turned my wheels full circle left and right, and it seems there is plenty of space for a a bigger tire (in my case, 8mm bigger in diameter to be precise)

what did you mean by wheel gap? the space from the top of the tire to the bottom of the fender (when looking from the side)?

Limelight

Yes - I'm personally not a fan of 20" wheels with low profile tires on a car that isn't lowered as the offset usually pushes the wheels flush with the body of the car and visually amplifies the wheel gap effect. That's just my personal preference though. Throw in 20's on the P-AWS already rough ride and a smaller sidewall to cushion bumps - ouch!

I'm more concerned with brake and suspension clearance though with changing wheels/tires - and unfortunately the RLX population is so small that it's hard to find out what does/doesn't work. And tire shops have never seen an RLX so they aren't much help I'm finding either....

Recipe7

From what I have gathered/researched, the RLX can't take any offset lower than a 32 and any wheel width greather than 9 inches. a 275/40/19 tire will definitely be able to fit on that 9 inch wheel, but it will be buldging as the recommended wheel width is 9.5-10 inches for a 275.

The biggest issue is that the 275/40/19 tire is bigger than the stock 245/40/19 by 3.2%.

I see what you mean. It doesn't sway me as much as the ride/sidewall does. I would love to go to a 20 inch wheel but there is no going any bigger than 35 on the sidewall. However, given the fact that the run-flat michilins are pretty much a 30-35 ride in my opinion, i'd rather increase comfortability rather than decrease it.

I've tried many tires and options and I prefer not to push the envelope past 2% on the wheel diameter increase. I don't think there are much options out there for what we are given.

I've still been thinking of what to do regarding my setup. My first plan was:

1. $1100 19x9 ET35 wheels. Each wheel weighs a little less than 26 lbs, a good drop of about 7 pounds at each corner.
2. 255/40/19 Pirelli Cinturato P7 All Season Plus at roughly $215 each.
3. A set of front and rear slotted/dimpled rotors with ceramic pads for roughly $390
4. With installation of about 100 for the wheels and tpms and another 2 hours of labor running at 85 per for the brake installation, I am looking at roughly $2600

Plan 2:
Everything in plan 1, except keep running on the 245/40/19 michilin primacys. They all have tread of about 7.5/32, with an odd exception of one tire at 5.5/32. They should hold me for another 15-20k if I'm lucky.

If I stick with the Michilins it will give me a good idea if I can move to a 255/40/19 tire. The 245 michilin tire will stretch pretty good on a 9 inch wheel unfortunately.

I will surely post my findings. I am not jumping on the purchase quite yet.

neuronbob

Check your PM. Sorry for the delay in reply, I have been off the forum the last two weeks with my crazy busy work schedule.

Itr0059

Hope the Guy wasn't from Chatham Ontario!

VMRWheels

If it helps, I am working with a forum member to have an RLX in for test fitment for 19x9.5. With the numbers plugged in, I should be able to determine if your fitment would work. That said, based upon what I've seen online, 19x9 ET35 with a 245/40-19 tire should be just fine.