tire question
Thread Starter
Pro
Joined: Jan 2012
Posts: 605
Likes: 2
From: Queen Creek Arizona
tire question
ive seen on a post that 255/55/17 tires wont fit on the front, but i seen people say their running 335/35/17s on the front too. so what is the truth will 255/55/17s work in the front, or not?
Race Director
Joined: Oct 2005
Posts: 11,772
Likes: 177
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
I wouldn't use a 255/55-17, just too tall
The factory 255/45-17 on later C4's was on an 8.5" rim
Some models also came with 275/40-17 all around on 9.5" rims.
Those tires have a diameter of approx. 25.66"
Intermediate
Joined: May 2002
Posts: 39
Likes: 0
From: Liverpool Merseyside
I run 255 35 19"'s all aroud on my 84 - 255 55 16"s are quite a hard size to get in the UK and it was cheaper to buy new wheels and tyres than it was to simply buy the tyres
thats on an 8.5" rim with the correct offset - but they are 120mm PCD which is slightly different but works out about the thickness of a human hair each side off from the 4.75" PCD and I have hud centric rings on there to ensure they're centred
to run 255 55 17's your spedo would need to be recalibrated wouldn't it as the rolling size would be a fair bit out?
thats on an 8.5" rim with the correct offset - but they are 120mm PCD which is slightly different but works out about the thickness of a human hair each side off from the 4.75" PCD and I have hud centric rings on there to ensure they're centred
to run 255 55 17's your spedo would need to be recalibrated wouldn't it as the rolling size would be a fair bit out?
Le Mans Master
Joined: Feb 2011
Posts: 6,712
Likes: 174
From: Chatham NY
St. Jude Donor '13, '15-'16,'18 thru '25
Check out the site below you can plug in your numbers and see the tire size differences
http://www.miata.net/garage/tirecalc.html
http://www.miata.net/garage/tirecalc.html
