305/30/19s

[6speeds]

Need a lil help boys...Monday I'm installing the 305s to the rear stock wheels moving the stock rear 275/35/19 to the front. Tire calculator says diameter difference is 1.4% .. Has anyone done this before any problems with rubbing???

I just calculated the stock tires that came with the car dia difference front to back is 2.1% so computer should be happyer with the 305s rite???

[Colinv6]

Won't these look far too wide for the wheels???

[stranger]

Thought 295 was the wildest you could go on stock?

[cotmfk]

No, someone is running 305s. I saw it in the photo forum. I think they're running BC wheels. Maybe you can search on that... he has his offsets and everything in the first post.

But, I believe he is running 265s in the front.

[gthal]

Originally Posted by cotmfk

No, someone is running 305s. I saw it in the photo forum. I think they're running BC wheels. Maybe you can search on that... he has his offsets and everything in the first post.

But, I believe he is running 265s in the front.

Yes but those people are running a 305 tire but on a wider wheel (BC) than stock... likely a 10.5 or 11" wheel. Stock is 10" and a 305 tire would require at least a 10.5" wheel based on manufacturer specs. It will be possible to mount it but it will be on a wheel too narrow and outside of manufacturer tolerances. It may be dangerous (although maybe OK), but I suspect the OP will hate the driving feel as it will be very sloppy and the sidewall won't have sufficient support from the wheel itself. You can't go wider than a 295 on a 10" stock wheel.

EDIT: Sorry, I think I misread your post and my response wasn't really related to your comment .

OP, rubbing aside, 305 is too wide for a 10" stock wheel. However, you likely will not rub on the fender with the conservative stock offset. You may, however, need a spacer to avoid rubbing the strut but that's an easy fix if it is an issue... the real issue is the tire doesn't fit the wheel properly.

[lsturbointeg]

305's Definitely wide tire unless ur running a 10.5" rim

[TahoeM3]

The only 305s that I know of that have fit on stock 10" rear wheels are the Mickey Thompsons that TPG Racing used.

I have 295 MPSS rears on mine and they had trouble getting them on, but they are a massive upgrade over stock. I don't think 305 MPSS would have fit.

[rif75]

Originally Posted by TahoeM3

The only 305s that I know of that have fit on stock 10" rear wheels are the Mickey Thompsons that TPG Racing used.

I have 295 MPSS rears on mine and they had trouble getting them on, but they are a massive upgrade over stock. I don't think 305 MPSS would have fit.

You have put 295/30 or 35?

I tried 275 on a 9" on my last c63 since the 255 was terrible...It was the limit. On my 997S PDK, the 305 are on 11" wheels. I know for sure that some people put 305 on 10.5" wheels on M5 F10

[Mike@N54Tuning.com]

+1 on above

The 305 is not gonna work. At the last track day we have a couple guys with 295s on stock rear wheels. Looked good.

Mike

[Padfan9]

Originally Posted by 6speeds

Need a lil help boys...Monday I'm installing the 305s to the rear stock wheels moving the stock rear 275/35/19 to the front. Tire calculator says diameter difference is 1.4% .. Has anyone done this before any problems with rubbing???

I just calculated the stock tires that came with the car dia difference front to back is 2.1% so computer should be happyer with the 305s rite???

That's not a good idea. I have 305/30/19 and they match perfect with 265/35/19. You putting your rears on the front will make a huge difference in the diameter and will cause DSC issues (it will go off all the time) and it will look off. I would buy the correct fronts or get 295/35/19 and then use the rears on the front.

[Padfan9]

Here is a pic of my new set up. I think it's perfect if you want the same look.

Front: 9.5 inch wheel ET 20
Tires: 265/35/19

Rear: 11 inch wheel ET 40
Tires: 305/30/19

[Ron S]

Originally Posted by Padfan9

Here is a pic of my new set up. I think it's perfect if you want the same look.

Front: 9.5 inch wheel ET 20
Tires: 265/35/19

Rear: 11 inch wheel ET 40
Tires: 305/30/19

I'd just ordered MP4S 275/35/19 front and 305/30/19 rear using the same M4 stock rims. Anyone tried this set up? any issues? Thanks in advance.

[RodF82]

Originally Posted by Ron S

I'd just ordered MP4S 275/35/19 front and 305/30/19 rear using the same M4 stock rims. Anyone tried this set up? any issues? Thanks in advance.

Originally Posted by Ron S

I'd just ordered MP4S 275/35/19 front and 305/30/19 rear using the same M4 stock rims. Anyone tried this set up? any issues? Thanks in advance.

How'd this work for you?