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[Chunner]

I am looking for a new set of Rims and Tires for the Track. I am running the stock suspension for my 135.

I would like to stick with 18 inch rims.

Any suggestions for the brand/size/offset of rim and the size of tire?

[VMRWheels]

Our V810s plus some nice sticky rubber.

https://www.flickr.com/photos/vmrwhe...7636563494005/

18x8.5 ET45/18x9.5 ET58 + A tire like the Bridgestone RE-11 would be a great combo!

[Chunner]

Originally Posted by VMRWheels

Our V810s plus some nice sticky rubber.

https://www.flickr.com/photos/vmrwhe...7636563494005/

18x8.5 ET45/18x9.5 ET58 + A tire like the Bridgestone RE-11 would be a great combo!

Looks real good. What size tires would you recommend?

[mb135is]

Prices and weight on those VMRs?

[Kgolf31]

Originally Posted by Chunner

I am looking for a new set of Rims and Tires for the Track. I am running the stock suspension for my 135.

I would like to stick with 18 inch rims.

Any suggestions for the brand/size/offset of rim and the size of tire?

Not trying to flame, but just want to get a picture of your wants and needs

Are these purely going to be running on the track?

If so, why do you want to stick with 18s? IMO, there is nothing beneficial with 18s for track. You're spending more on wheels, tires, and a smaller sidewall.

If you can fit 17s, go for it. You're reducing weight, which thus translates to rotational mass and quicker acceleration. As well, tires are cheaper.


As for tires, IMO look into the Dunlop Z2s or BFG Rivals. Both tires can handle non-camber cars fairly well (because of their harder sidewall). I do like the Hankook RS3s, but there is a new version coming out within a week or 2 and really no known data on them yet.

[Suds]

I bought Bridgestone RE-11s for my Vette, I love them on the track and street, I've done wet and dry HPDE days with them. Really excellent traction even when lightly drifting them. I wish they had the size I wanted for my One when I was putting track tires on it. I went with Dunlop Z2s on the One., they are good but a bit noisy, but wet and dry traction is really good with them also.
Anyway those are both good tire choices for street and track driving.

[dcaron9999]

Originally Posted by Kgolf31

...Are these purely going to be running on the track?

If so, why do you want to stick with 18s? IMO, there is nothing beneficial with 18s for track. You're spending more on wheels, tires, and a smaller sidewall.

If you can fit 17s, go for it. You're reducing weight, which thus translates to rotational mass and quicker acceleration. As well, tires are cheaper...

What is the largest width and offset for a 17 inch RIM on a 135i that sees the track? Any specific RIM models you recommend?

[Kgolf31]

Originally Posted by dcaron9999

What is the largest width and offset for a 17 inch wheel for proper fitment on a 135i that sees the track? Any models you recommend?

17" have similar offset and widths.

IIRC, the biggest width you can go is around 255s. This is limited by tire manufactures.

Now that I think about this, you're going to need more rear tire....which is a good point for 18s.


I have ran on Hankooks for 2 years on my Z4M and loved them, take a bit more slip angle to get ultimate grip.

Just started running on Dunlop Z2s. Much more responsive, but when you get to the limit they break away pretty quick. With the RS3s you can progressively feel the tire start loosing grip and can recover.

[dcaron9999]

Originally Posted by Kgolf31

17" have similar offset and widths.

IIRC, the biggest width you can go is around 255s. This is limited by tire manufactures.

Now that I think about this, you're going to need more rear tire....which is a good point for 18s.


I have ran on Hankooks for 2 years on my Z4M and loved them, take a bit more slip angle to get ultimate grip.

Just started running on Dunlop Z2s. Much more responsive, but when you get to the limit they break away pretty quick. With the RS3s you can progressively feel the tire start loosing grip and can recover.

Thanks for your feedback.

What is the maximum front+rear RIM width for a 17" is what I was interested in (17x8.5, 17x9, 17x9.5). If you recall, I have front camber plates. I would not mind a square setup or "minimal" stagger setup...

[Chunner]

Originally Posted by Kgolf31

Not trying to flame, but just want to get a picture of your wants and needs

Are these purely going to be running on the track?

If so, why do you want to stick with 18s? IMO, there is nothing beneficial with 18s for track. You're spending more on wheels, tires, and a smaller sidewall.

If you can fit 17s, go for it. You're reducing weight, which thus translates to rotational mass and quicker acceleration. As well, tires are cheaper.


As for tires, IMO look into the Dunlop Z2s or BFG Rivals. Both tires can handle non-camber cars fairly well (because of their harder sidewall). I do like the Hankook RS3s, but there is a new version coming out within a week or 2 and really no known data on them yet.

Yes, these will be strictly for the track and you have very valid points. I simply thought that wider tires, stiffer sidewalls and smaller sidewalls were best for track duty. However, I was trying to stick with 18's because that was the OEM sized rim. Nevertheless, in your opinion, what size should that a 18" rim be (Width and ET) and which tire and its size would be best for track duty for a 135i?

[Kgolf31]

Originally Posted by dcaron9999

Thanks for your feedback.

What is the maximum front+rear RIM width for a 17" is what I was interested in (17x8.5, 17x9, 17x9.5). If you recall, I have front camber plates. I would not mind a square setup or "minimal" stagger setup...

Sorry man, completely went over that question.

Let me start off by saying, that the 1 series has stupid offsets (in the rear).

If you want a square set-up, you're going to be limited to 8.5" or 9". Let me go into explain what I've had to go through for fitting 8.5"



As you can see, there is not much room to give. The car is lowered a big amount...as I want to set it up for track/autox as much as possible (going on recommendations from people who have raced 135i before)

Anyways, I run ARC8s wrapped with Dunlop 245/40/17. The wheels are 17x8.5 ET40.

The fronts needed a 5mm spacer to clear the strut and a light fender roll to avoid rubbing under high compressure.



For the rears, I needed to do a hard roll to avoid rubbing. I still get rubbing under compression against the fender liner...but no contact with the paint (I'm perfectly okay with that).

If you tried to go 9" square, I feel that you will need to roll and pull fenders to clear the fronts. The rears aren't as big as an issue (if you're specifically looking at APEX because their 17x9 is an ET42). With an ET42 in the rear, you won't stick out as much as you would with an ET40 and 8.5" (specifically it would be 4mm).

However, there is no room to go. You'll need a bigger spacer to maintain clearance from the strut...which means you're going to need around 12mm of extra room on the outside fender...which IMO is not happening.

So, I think if you want to play it safe, either 8.5" squared with roll in the rear at least, and maybe fronts depending on how you are lowered.

Or, you staggered with a 9.5" in the rear with a high offset (APEX is ET62 which will fit perfect).

And incase you wanted to know, from a visualization standpoint. This is with stock suspension and camber:

Originally Posted by Chunner

Yes, these will be strictly for the track and you have very valid points. I simply thought that wider tires, stiffer sidewalls and smaller sidewalls were best for track duty. However, I was trying to stick with 18's because that was the OEM sized rim. Nevertheless, in your opinion, what size should that a 18" rim be (Width and ET) and which tire and its size would be best for track duty for a 135i?

Smaller sidewalls would give you more response, but forgiveness will decrease as there is not as much give in the sidewall.

Sizing the tire will depend on the brand/model tire you decide and what wheel width. For example, I would not recommend the same size RS3s and Z2s, because their tire design is completely different. Z2s can be stuffed on a wheel (similar to a R-compound) and still be effective. If you try to do this with RS3s, you'll decrease steering response and make the car slower and tougher to control....because the tire will actually shimmy back and forth on the wheel before it starts to "slip" and make grip.

Do you want to go staggered or square? Basically the recommendations are the same for 18" as they are for 17".

I'm a pretty big fan with APEX. They helped me numerous times trying to size and fit my wheels. Huge asset.

[dcaron9999]

Originally Posted by Kgolf31

.

Kgolf31 ... Thanks for sharing this! Great info and pics ...

[VMRWheels]

Originally Posted by Chunner

Looks real good. What size tires would you recommend?

Typically on most of our wheels, 225/40/18 and 255/35/18 is what we recommend. You can run a 265/35/18 or possibly even a 275/35/18 with the V810, depending on your alignment, tire you choose, and whether or not you have the rears rolled or modified. 265/35/18 should fit without modification, but the 275s may require a a bit of work.

Originally Posted by mb135is

Prices and weight on those VMRs?

For a set of 18s you're looking at about 22 pound per wheel front and rear. PM coming your way though!