ASK ALL WHEEL/TIRE FITMENT QUESTIONS HERE - The Official Wheel/Tire Fitment Thread

[CubbyChowder]

i run 205/45 et5 and they are perfect imoh

205/45 for sure. 40 will look goofy.

Yeah after a bit more searching I think the 40's will be too small. I'm going to go with 45's. Thanks guys.

[Mystikal]

What size spacers would I need to run if I wanted to bring my wheels out a little more flush to the arches without causing issues. Also what size wheel stud conversion would be most appropriate?

RacingDynamics RGP 15x7 et26
205/55-15 S-drives
H&R sports, bilstein sports
No camber correction front or rear

You're limited to 10mm spacers F/R. I'm unsure on stud info, sorry.

[Mystikal]

If I widen a 16x7.5 et 20 to 16x9 does the et become +1?

If so, how much pulling would be required?

As the above poster, how big a spacer would be needed for a nice fitment on a 16x7.5 et 20 wheel up front?

Yes, +1. You will need a slight rear pull, nothing crazy.

Are you matching the 7.5 with the 9? If so you'll want a 20mm spacer.

[Mystikal]

First, let me say thank you for this awesome thread Jay. I can't believe how much you're helping out the e30 community.

Please excuse me if this has been asked before. I searched until my eyes burned but I'm still not sure on the answer. I have an 1989 325i. IE3 springs, Bilstein sports. Note: I'm wanting to put 15mm drop hats up front to get the proper rake. Also considering GC coil-overs up front instead.

I'm interested in esm002 wheels. Two options in widths: 17x8.5 or 17x10, two options on offset. ET20 or ET15. My goal is to be flush and have great grip. I'm not a fan of stretched tires myself but I do like a flush, wide look. I'm going to have a euro S50 in soon so I need as much in the rear as I can get within reason. What would you do?

As far as I can tell 17x8.5 et20 with 235/40/17 would fit with some fender rolling. Falken Azenis 615k's come in that size so I'm considering these. Also considering Dunlop Star Specs. If I can get adequate grip without ruining the fenders I'm happy but I wouldn't be against rolling and pulling if need be.

Thanks!

Tire width is overrated. Buy quality tires in a 215/40 and you'll have no fender issues and still be able to get traction. I ran 205s on the back of my Z3M for entire summer, even with an S54 and short gearing it could easily hook up in first gear.

I vote 17x8.5 & 215/40 Star Specs (keep in mind the new Z2 comes out next year).

[Mystikal]

Hey, need some help, im thinking of buying some e24 M6 wheels and need to know what I need to do to get them to fit.

Wheels specs front and rear, are in metric - 415mm x 195mm (16.3-in. x 7.7-in.)
offset is et19 but i will need to run adapters so effective offset will most likely be et 1
Current tire specs are 240/45/415 but i doubt these will fit without fender rolling

Correct me if I'm wrong but you can't exactly go out and buy tires for metric wheels easily anymore. I have no idea what you can do with those.

[Mystikal]

if i go 15x8 et10 front with 225/40 and 15x9 et20 rear with 245/40 will those fit in anyones experiance? obviously ill need to roll the fender lips right out of the way. but i think i should get away with almost no pulling or flaring.

i have run 16x8 et5 with 205/45 and et20 with 225/40 with no issues just a roll. no rubbing.

thoughts?

You're mentioning tire sizes that don't exist. Once you look at the available 15" tire sizes you'll start to realize how limited you are.

[Mystikal]

I'm having a really hard time deciding what tire size I want for my e38 Style 5's (16x8 et23 before adapters) on my '91 318is. As for adapter sizes, I'm going to run 18mm front and 20mm rear. The car will be low on ground control coilovers. I'm torn between 205/40/16 and 205/45/16, I know the 40's quite a bit smaller than the original diameter. Fenders will be rolled. Any input?

I'd go 195/45 personally.

[CubbyChowder]

I'd go 195/45 personally.

hmmm. I'll consider that too. Do you recommend those just to get a tiny bit more stretch on there? The diameter is just a tad smaller on the 195's than on the 205's.

[Jozi]

Yes, +1. You will need a slight rear pull, nothing crazy.

Are you matching the 7.5 with the 9? If so you'll want a 20mm spacer.

Sweet, thanks very much . I thought it would be more hassle to get it to fit. Will be running staggered so will look for 20mm spacers also.

--- edit ---

What tires would fit, I have 225/40/16's that I was hoping would work. I'm probably not going to be lowering her to much and have camber adjustment on my rear beam.

[aPapester]

hey im buying some 17x8.5 et 25 all around, gonna use 205/40, i have a 20mm spacer I wanna run in the rear, im decently low and have like 3ish degrees of camber in the rear,

problems Im gonna run into?

[Luke_M]

Tire width is overrated. Buy quality tires in a 215/40 and you'll have no fender issues and still be able to get traction. I ran 205s on the back of my Z3M for entire summer, even with an S54 and short gearing it could easily hook up in first gear.

I vote 17x8.5 & 215/40 Star Specs (keep in mind the new Z2 comes out next year).

Sounds good. I like it! I'll keep those new star specs in mind. My sister had star specs on here cayman and really liked them. I assumed the 615k's were more aggressive but I might be wrong. The star specs were pretty gnarly.

[Mystikal]

hmmm. I'll consider that too. Do you recommend those just to get a tiny bit more stretch on there? The diameter is just a tad smaller on the 195's than on the 205's.

It's for clearance. Most guys with style 5s and adapters claim they don't rub. Most of them are lying.

[Mystikal]

Sweet, thanks very much . I thought it would be more hassle to get it to fit. Will be running staggered so will look for 20mm spacers also.

--- edit ---

What tires would fit, I have 225/40/16's that I was hoping would work. I'm probably not going to be lowering her to much and have camber adjustment on my rear beam.

Too wide for +1. You have to run 205/45 to clear.

[Mystikal]

hey im buying some 17x8.5 et 25 all around, gonna use 205/40, i have a 20mm spacer I wanna run in the rear, im decently low and have like 3ish degrees of camber in the rear,

problems Im gonna run into?

Fronts will probably need a 5mm spacer to clear the struts. I'd say 15mm would be a lot easier to fit in the rear but with enough fender rolling it's possible.

[Mystikal]

Sounds good. I like it! I'll keep those new star specs in mind. My sister had star specs on here cayman and really liked them. I assumed the 615k's were more aggressive but I might be wrong. The star specs were pretty gnarly.

615K's are way behind the Star Specs, R-S3s, RE-11s, AD08s, etc. Any of those four tires can blow minds.