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

[Mystikal]

I found some wheels i like and wanted to know what i would have to do to make them work or if even possible.

Car
1988 325i sedan. all stock

Wheels
17x7.5 4x100 with a backspacing of approx 150mm i think the offsets would come out to 42mm.

i am already aware that i would need hubcentric rings. need to know if i need spacers.

Tires are 215/45/17

Yes, you'll need spacers for that setup. 15mm front 20mm rear would look good. The tires will likely scrub the front wheel wells at full lock, 215/40 is the correct diameter.

[Dozyproductions]

Yup, that size is fine.

Thanks man. Can't even describe my gratefulness for taking your time to update this thread.

[mr2peak]

For the front, yes. On the rear you don't need anything lower than +25 to clear the inside and therefore give you more fender clearance.

What would be the best offset for the rear to fit the fender like the front will? They fit the rear as is, 3mm clearance on the strut but they are sunken pretty far into the body, I'd like to get the fitment symmetrical front to rear.

Thanks for taking the time to give us some answers!


Seems like my best option is to have the spacers made for the front, see how they fit in the rear, adjust it, and have the rears made. I'll pay extra for shipping, but it might be worth it.

[Leejg]

1991 318I with Koni/Eibach Front and Rear. Car is fairly low, with ground to top of fender arch measuring 23 1/8 inch front and 23 3/8 inch rear. Currently i am running 15X7 rims with 35 mm offset. Front tires are 215/50 R 15 and rear tires are 225/50 R 15.

I am looking at getting used rims, also 15X7 but with 25mm offset. With the current setup on the car the rear tires are stuffed inside the fenders. Quickly looking at the numbers, with the 25 offset rims it seems like i will definitely have some rubing on the fender in the rear. However, if i moved down to a 215 or 205 tire, looks like i may be okay.

Thoughts?

[dublnup4life]

looking to see which tires would work best for my e30 325i vert
wheels are esm 16'' 7.5/9 et 20 for all four.

car is lowered fairly low, fenders NOT rolled

what I was thinking from studying different threads:
F: 205/45 R: 225/40
or
F: 205/45 R: 225/45
or
F: 205/45 R: 215/45

Don't really want to stretch tires much unless needed for clearance.

Thanks for the help!

[e30_luv_]

1989 325i. The wheels are 17x7.5 possible offset of et20. Would the fenders need any massaging? What size tire would you recommend for a non stretched look?

Thanks in advance!

[CosmosM3]

What's the ideal tire size for a 89 325i. I just bought a set of wheels.
4x100, 17x7, ET40 205/45/17 tires on the wheels already. Haven't drove the car with them on yet. Needs tires, should I just go with that same size?

[Mystikal]

What would be the best offset for the rear to fit the fender like the front will? They fit the rear as is, 3mm clearance on the strut but they are sunken pretty far into the body, I'd like to get the fitment symmetrical front to rear.

Thanks for taking the time to give us some answers!


Seems like my best option is to have the spacers made for the front, see how they fit in the rear, adjust it, and have the rears made. I'll pay extra for shipping, but it might be worth it.

Given the same width, 5-10mm of a rear stagger makes it roughly even on a late model. 10-15 on an early car.

[Mystikal]

1991 318I with Koni/Eibach Front and Rear. Car is fairly low, with ground to top of fender arch measuring 23 1/8 inch front and 23 3/8 inch rear. Currently i am running 15X7 rims with 35 mm offset. Front tires are 215/50 R 15 and rear tires are 225/50 R 15.

I am looking at getting used rims, also 15X7 but with 25mm offset. With the current setup on the car the rear tires are stuffed inside the fenders. Quickly looking at the numbers, with the 25 offset rims it seems like i will definitely have some rubing on the fender in the rear. However, if i moved down to a 215 or 205 tire, looks like i may be okay.

Thoughts?

15x7 225/50/15 should clear all 4 corners without even rolling the fenders.

[Mystikal]

looking to see which tires would work best for my e30 325i vert
wheels are esm 16'' 7.5/9 et 20 for all four.

car is lowered fairly low, fenders NOT rolled

what I was thinking from studying different threads:
F: 205/45 R: 225/40
or
F: 205/45 R: 225/45
or
F: 205/45 R: 215/45

Don't really want to stretch tires much unless needed for clearance.

Thanks for the help!

None of them will fit (well, with 100% clearance) without fender rolling. If you're dead-set on not rolling, 205/45 on the rear should give you enough space. If you're going to roll anyways, go for option 1.

[Mystikal]

1989 325i. The wheels are 17x7.5 possible offset of et20. Would the fenders need any massaging? What size tire would you recommend for a non stretched look?

Thanks in advance!

215/40/17. Shouldn't need any fender rolling unless the car is very low as well as softly sprung.

[Mystikal]

What's the ideal tire size for a 89 325i. I just bought a set of wheels.
4x100, 17x7, ET40 205/45/17 tires on the wheels already. Haven't drove the car with them on yet. Needs tires, should I just go with that same size?

Needs 20mm spacers all around to not look completely sunken in. 215/40/17 is the better size (correct diameter).

[Kato]

Quote:
Originally Posted by cha ching
wow, 142 pages...i'm not gonna search; what about style 5's, 17x8, 20et. I'm going to have them filled & re-drilled to 4x100. Would a 225 or 215/40-17 work?

215/40/17.


I want to do the same. Can I run a 235/40/17 with the appropriate fender rolling? I have a set of tires ready for these and trying not to buy another, new set if possible! Plus, I like the meatier look and I'm not into stretch and poke...

[CosmosM3]

Needs 20mm spacers all around to not look completely sunken in. 215/40/17 is the better size (correct diameter).

Would 18mm spacers work instead of 20mm? I had no idea that I was going to be needing spacers with the wheels I picked up. $64 for 18mm spacers with bolts, http://www.velocitymotorcars.com/bmw-wheel-spacers.html.

[mr2peak]

Given the same width, 5-10mm of a rear stagger makes it roughly even on a late model. 10-15 on an early car.

Thanks man really appreciate it. Probably gonna go with an extra 5mm instead of 10mm so I have a bit more room for tire!