View Full Version : Tire Size Question

03-09-2015, 10:25 AM
I am running General G-Max 205/40-17 and the drivers side front rubs on the wheel well about in the center of the tire only when I hit bumps.
My run to work is around 25 miles on the back roads and the tire hit the wheel well 28 times today. I counted due to I don't want to do damage to the tire or wheel well. Also I don't have any ice in the wheel well. Is anyone else having this problem? My car is a 2015 Abarth and did come with the standard 16" wheels that I still have and might be going back to.

03-09-2015, 11:17 AM
I'll have to check mine since I run the same wheels. As far as I know the 205/40 Pirelli had no issues and the 205/40 Kuhmos. On Sunday I just put on 205/40 Coopers which don't look as stretched as the other two. I've only been on a couple drives so after a week of driving to work I'll see if there's any kind of rubbing.

03-09-2015, 11:58 AM
Interesting. I run 215/40/17 and don't get any rubbing. Maybe it's the wheel/wheel offset?

03-09-2015, 12:29 PM
Not the off-set, rubbing in the center of the tire not the edge. I took the tire off yesterday to see what was rubbing and it hits the wheel well rubber cover. I might try taking that rubber well cover off and see if I can't do something with it. The size tire I am running is the stock size if you purchase the 17" option from the dealer. I also had the tire dealership that I purchased the tires from look-up the tire size and that size is what they came up with. The stock 195/45-16 is .55" smaller in diameter then the 205/40-17. The 205/40-17 is .39" wider but that is not the problem. If it was then I could just purchase some spacers.

03-09-2015, 02:36 PM
Are you on stock suspension? I'm lowered on Eibach Sportlines and went out at lunch and didn't see anything rubbing from the driving I did yesterday. With these wheels I'm not sure you want to run spacers since they already stick out further than stock 17's.

http://i28.photobucket.com/albums/c218/andyhight/My%20Abarth/20140928_170136_zpsi56s6ivg.jpg (http://s28.photobucket.com/user/andyhight/media/My%20Abarth/20140928_170136_zpsi56s6ivg.jpg.html)

03-09-2015, 02:53 PM
Yes stock suspension

03-09-2015, 09:20 PM
The Stock tire + Stock suspension should not be rubbing at all. I looked those wheels up. 17x7.5 ET 35. Those are close enough to stock.

I want to guess that there is a problem with the bumpstop? Also maybe the top hat/mounting nut on the strut could be loose if you are hearing the problem but not seeing the wear on the tire.

Sounds like a dealer should take a looksy if you don't have the tools at home.

03-09-2015, 09:51 PM
I agree with nilfinite, those shouldn't be rubbing at all. I'd look into the suspension and see if something is off there.

03-10-2015, 10:44 AM
I will pull the tire again this weekend and check the suspension out and yes I have all the tools needed. I will also post some pictures on the location were the tire is hitting the wheel well. I am due for service at 6,000 miles and I have 5,500 miles now. Not real crazy about letting the dealer work on my car as I do all my own service but when it is free for 36,000 miles makes it hard not to.

03-10-2015, 06:45 PM
Agreed, sometimes it just makes sense to work on the car yourself. It'll probably take less time taking care of it in your driveway than bringing it to the dealer + additional inconvenience.

03-16-2015, 09:42 AM
Ok removed the Gmax 205/40-17 and went back to the stock 195/45-16 and no rubbing. You can see the dark spot on the wheel well were the tires are hitting. The struts are making a banging or loose sound when I go over bumps but not as bad with the stock tires on. I will be bringing the car in at 6,000 for service in a couple of weeks.

03-16-2015, 11:35 AM
Ok removed the Gmax 205/40-17 and went back to the stock 195/45-16 and no rubbing. You can see the dark spot on the wheel well were the tires are hitting. The struts are making a banging or loose sound when I go over bumps but not as bad with the stock tires on. I will be bringing the car in at 6,000 for service in a couple of weeks.

That doesn't look like a stock FIAT wheel. I would suspect these wheels are what is causing the rubbing as 205/40 17's are an optional size for the Abarth.

I have 205/40 17 Pirelli P-Zeros on my Abarth with factory 17" wheels and used to use 17" Sparco wheels with 205/40 17 Kumho 4X Ecsta tires (see my garage) on my 2012 Sport.

03-16-2015, 12:51 PM
Rim size is the same as stock 17" and it is not and off-set problem due to the hitting of the wheel well is when the car goes up and down, not when I turn the wheel. Some people are running this size tire or taller with the cars lowered? I must be missing something here. The rims are Competizione Sport Tuning Wheel 17x7.5.
I purchased these due to the 4x98 mm bolt pattern and the no modifications needed if I use a 205/40-17 tire. Well that didn't work out too well. I love the look but hate the rubbing every time I hut a good size bump. It really isn't the bump it is the compression of the car going up and down the really gets the tires rubbing.

03-16-2015, 01:20 PM
The rubbing is definitely not because of the wheel + tire. Your setup is close to stock.

It's definitely the suspension components. Sounds like a warranty fix.

03-16-2015, 01:43 PM
Just made my appointment at the Dealer for 4/9/15. They are giving me a loaner for the day. The dealer wants the 17" tires and rims on the car so I will swap them out before I bring it in. They are also looking at the struts, turbo pressure gauge back light and center cluster doesn't tell me anything when a call is coming in. I just got the new I6 Plus phone that maybe the problem. Other then that the car has been great.

03-18-2015, 10:35 AM
The Fiat 500 Abarth uses 17 x 7.0" wheels. According to Tire rack, using 205/40-17 tires on 7.5" wide wheels with a 30mm offset will produce rubbing. Your offset is 35mm, so you would think you are safe, however, the 5mm could be made up due to the differences in tires. Rubbing in the center is weird, though. Maybe the splash shield needs to be adjusted or is not all the way in its place?

03-18-2015, 11:34 AM
center rubbing is strange. im running 215/40/17's on stock 17's and they only rub on the outer edge on really big dips. and I am lowered on Sportlines. you definitely should not be rubbing. my guess there is something up with the strut noise you mentioned.

04-10-2015, 08:31 AM
I had my wife drop my car off yesterday and it didn't start off too well. They said they would have a loaner car waiting for her and it took over an hour due to the loaner was at another site. Ok We got a free loaner just took one hour to get it. Well I got a call from them yesterday and the service manager told me my tires are 4" wider than the stock 17" tires on other new Abarth's they have on the lot. I told him to read the size on my tire which is 205/40-17 and go and read the size on a new one and call me back. He wouldn't do that so I told him that if my tires were 4" wider they would be rubbing on the sides not the top. Lets move on to the boost gauge, the back light is intermitting. Some times it is on when I start the car other times it comes on when I am driving and it goes off while I am driving. The service manager told me it comes on at 3,500 RPM's? Ok well why is it on sometimes when I start it up? I should be picking the car up today and this is a new dealership so I will give them the a pass on those questions. Please do my oil change correctly. It is the first time in a while I have let anyone other then me work on one of my cars but the 36,000 mile free oil changes seem to be a good thing.

Just got the call that my car is ready and they said the boost gauge is correct only working some of the time??? The tire rubbing issue is that I need spacers???? Hitting on bumps not when I turn. Well at least I got my oil changed.