Tire Size
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 43
Likes: 0
Tire Size
I know there are numerous threads about tire sizes but after searching I would like input regarding my rear tires. I have replaced the front tires on my 71 coupe recently with 215/65/15's. I would like to run a taller tire in the baack for a bit more ground clearance. Perhaps 225/75/15's?
Don't want anything too radical that will cause rubbing issues.
Thanks to the forum for solving my front end problem....the problem was bad tires.
Don't want anything too radical that will cause rubbing issues.
Thanks to the forum for solving my front end problem....the problem was bad tires.
Burning Brakes
Joined: Mar 2013
Posts: 750
Likes: 180
From: Springfield Missouri
I run 225/60 R15's on the front and 255/60 R15's on the rear of my 76. All T/A radials and have had no problems with rubbing and I like the stance.
There are presently mounted on 7" Champ 500 wheels with 3.75 back spacing, but soon to be American Torque Thrust 7's on the front and 8's on the rear with 3.75 back spacing.
There are presently mounted on 7" Champ 500 wheels with 3.75 back spacing, but soon to be American Torque Thrust 7's on the front and 8's on the rear with 3.75 back spacing.
Burning Brakes
Joined: Sep 2006
Posts: 1,071
Likes: 86
From: Rotonda FL
I know there are numerous threads about tire sizes but after searching I would like input regarding my rear tires. I have replaced the front tires on my 71 coupe recently with 215/65/15's. I would like to run a taller tire in the baack for a bit more ground clearance. Perhaps 225/75/15's?
Don't want anything too radical that will cause rubbing issues.
Thanks to the forum for solving my front end problem....the problem was bad tires.
Don't want anything too radical that will cause rubbing issues.
Thanks to the forum for solving my front end problem....the problem was bad tires.
Pro
Joined: Nov 2015
Posts: 600
Likes: 110
From: Mainz
I run 225 70 15 up front, and 235 70 15 in the back, i also have 8.5 x 15 Rims on my car... 235/60/15 front and 255/60/15 back are also popular here in Germany, both give you a slight raked look... There is no Problems with clearance of the tires on either one with stock Suspension...
Pro
Joined: Nov 2015
Posts: 600
Likes: 110
From: Mainz
I run 225/60 R15's on the front and 255/60 R15's on the rear of my 76. All T/A radials and have had no problems with rubbing and I like the stance.
There are presently mounted on 7" Champ 500 wheels with 3.75 back spacing, but soon to be American Torque Thrust 7's on the front and 8's on the rear with 3.75 back spacing.
There are presently mounted on 7" Champ 500 wheels with 3.75 back spacing, but soon to be American Torque Thrust 7's on the front and 8's on the rear with 3.75 back spacing.
Bet this will look great, could you post a Picture of your car now? Thank you!!
Burning Brakes
Joined: Mar 2013
Posts: 750
Likes: 180
From: Springfield Missouri
Melting Slicks
Joined: Mar 2006
Posts: 3,161
Likes: 239
From: Southern CALIFORNIA
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Safety Car
Joined: Feb 2012
Posts: 4,705
Likes: 983
From: Orlando FL
We put 225--70--15 on all four corners of our 71 coupe, and they fill the wheel wells really nice. After front & rear suspension re-build, I wasn`t happy with the stance, so I put 8" bolts in back, and the slightly bigger tires, now it looks great!
Safety Car
Joined: Jun 2017
Posts: 4,786
Likes: 425
From: North Georgia, USA
I know there are numerous threads about tire sizes but after searching I would like input regarding my rear tires. I have replaced the front tires on my 71 coupe recently with 215/65/15's. I would like to run a taller tire in the baack for a bit more ground clearance. Perhaps 225/75/15's?
Don't want anything too radical that will cause rubbing issues.
Thanks to the forum for solving my front end problem....the problem was bad tires.
Don't want anything too radical that will cause rubbing issues.
Thanks to the forum for solving my front end problem....the problem was bad tires.
Either of the "stock" sizes should work well for what you're trying to accomplish, and will also keep the speedometer relatively accurate. 225/75R15 are about 28.3" in diameter, so they would make the speedometer read lower than your actual speed. In practical terms, this means that when you're driving along at 70mph on your speedometer, Officer Friendly will see 73mph (your actual speed) on his radar gun. That's something to consider there. Also, you'll loose a bit of torque at the wheels (effectively making your gearing "taller"), which will reduce acceleration (and braking) slightly. If you're looking at 65 and 75 profile tires, you're probably not drag racing, but again, it's something to be aware of.
Last edited by C6_Racer_X; Apr 13, 2019 at 07:02 AM.
Safety Car
Joined: Jun 2017
Posts: 4,786
Likes: 425
From: North Georgia, USA
Ooops, I missed that. And the link you posted has some good pics with sizes and info.
I really shouldn't hit the "post" button until after I've finished the first cup of coffee in the morning.
I really shouldn't hit the "post" button until after I've finished the first cup of coffee in the morning.