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View Full Version : The Abarth has less ground clearance with 16 inch rims than 17 inch rims



toddr124
11-01-2013, 11:39 AM
I have a Atlas scissor lift I use for servicing my cars. I needed add 2X12s next to the lift to drive on for my X1/9 to clear the lift. This has worked great all summer for storing and working on my cars.

It was time to put the all season wheels and tires on the Abarth. I pulled the car on the lift and raised it with no problem. Put the 16 inch rims on and lowered the car. Tried to drive the Abarth off the lift and the Abarth got stuck. The Abarth no longer had the ground clearance to go over the lift on the 2X12s. It took 2 people lifting the front and pushing it back to get the car off the lift.

I now need to added a 1x12 to raise the wood to 2 1/2 inches to use the Abarth on the lift.

trevc
11-01-2013, 11:43 AM
Yeah, I ran into the same issue with my bendpak scissor lift and 16" winters. Nice thing was wood was cheap :-)

Seafarer61
11-03-2013, 05:58 AM
...which is why I stayed with 16's, albeit the difference isn't all that much when on its own but when I parked my Abarth next to one with 17's, you could tell the difference rather easily.

BigT
11-03-2013, 08:28 AM
This is why whenever I get around to upgrading my wheels I'll be opting for 16x8's vice the 17x7.5

crazyirish
11-03-2013, 09:50 AM
The stock 17 Tire has a calculated diameter of 23.5". The 16 is 22.9". Real world differences could be even bigger. I like this tool for comparing tire sizes: http://www.miata.net/garage/tirecalc.html

MikeThinks
11-03-2013, 01:50 PM
its just because the tire height of the tire on the 17s is a little more than the expected 1" shorter needed to make up for the larger rim diameter, based on the 195/45 vs the 205/40. Not much...but it only takes a little if the clearance is close.

8338

stratofortress
11-03-2013, 05:59 PM
Strange that FIAT wasn't able to compensate for the plus sizing on the overall diameter of the tire/wheel assembly. Probably related to speedos being slightly off as detailed in this thread I made a while ago:

http://www.fiat500usaforum.com/showthread.php?10258-Digital-and-analog-speedos-don-t-match

Fiat500USA
11-03-2013, 06:31 PM
Ride height (fender lip)
Front: 16" 622mm
17" 632mm
Rear: 16" 649mm
17" 659mm

Tolerance:+/- 12mm

From: Fiat 500 and 500 Abarth Wheel Alignment Specs (http://www.fiat500usa.com/2012/06/fiat-500-and-500-abarth-wheel-alignment.html)

SailDesign
11-03-2013, 08:32 PM
Completely and utterly gob-smacked (google it) that not one post here has said what size the tyres are.

That really qualifies for a big "Duh!"...

modular
11-03-2013, 08:42 PM
Completely and utterly gob-smacked (google it) that not one post here has said what size the tyres are.

That really qualifies for a big "Duh!"...

Here ya go......up the page in post #5:




Its just because the tire height of the tire on the 17s is a little more than the expected 1" shorter needed to make up for the larger rim diameter, based on the 195/45 vs the 205/40.

SailDesign
11-03-2013, 10:03 PM
Here ya go......up the page in post #5:

Cr@p... I guess that would be MY Duh, then. :D

My fault for reading quickly on a small screen, although that's precious little excuse.

Fiat500USA
11-04-2013, 12:28 AM
Cr@p... I guess that would be MY Duh, then. :D

My fault for reading quickly on a small screen, although that's precious little excuse.

It's all good. No big deal.bigok

cm-r
11-05-2013, 03:16 AM
I had to raise my car because of this. My car bottomed out a lot on uneven roads/ freeways with the stock 16inch wheels slammed on bc coilovers. I'm surprised nobody else had this problem with 16inch wheels.

zonker
11-05-2013, 03:32 AM
I had to raise my car because of this. My car bottomed out a lot on uneven roads/ freeways with the stock 16inch wheels slammed on bc coilovers. I'm surprised nobody else had this problem with 16inch wheels.

I'm guessing the lions share of the "problem" has less to do with tires and more to do with the coilover setting

cm-r
11-11-2013, 01:30 AM
I'm guessing the lions share of the "problem" has less to do with tires and more to do with the coilover setting

You're absolutely correct on that one. It is just that the car looks so much better without wheel gap and adjusting the coilovers to make sure that there was no to little wheel gap made the car less drivable/ unsafe. So my next plans are to get 17 inch wheels and factory option spec tires to have the no wheel gap look or close to it. Which will then give me more ground clearance. Thanks toddr124 for your post and for proving my theory/ reason to upgrading my wheels!