Maximum Tire width/height...no this is not starting the fight over 'rim sizes' again!
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Senior Member
Joined: Apr 2001
Posts: 4,968
Does anyone have any figures on what the maximum tire section width and overall height is for the 17" SE/AE?
I am referring to potential rubbing in the wheelwell, etc...
NOT to what is safe and what is not as far as the whole rim size fight goes!!!
Specifically I am entertaining the idea of Dunlop SP Sport A2's in 235/55 17 98H. While maybe not a razor sharp as a 50 series or lower, my only concern is that they are .8" wider in section width and a whopping 1.7" wider in tread width than stock. They are also 1.2" higher than the RE92's.
Thanks!
I am referring to potential rubbing in the wheelwell, etc...
NOT to what is safe and what is not as far as the whole rim size fight goes!!!
Specifically I am entertaining the idea of Dunlop SP Sport A2's in 235/55 17 98H. While maybe not a razor sharp as a 50 series or lower, my only concern is that they are .8" wider in section width and a whopping 1.7" wider in tread width than stock. They are also 1.2" higher than the RE92's.
Thanks!
Why would you want to put the widest width tire you can on a 7" rim? At some point, the gains from the wider tires do not outweigh the bigger size/weight of the tire.
I suggest you use this link to determine what tires sizes keep the overall diameter of the tire as close to the oem diameter as possible.
IMHO. A 225/235 is about as wide as I would go on the factory maxima 7" rim.
http://www.miata.net/garage/tirecalc.html
I suggest you use this link to determine what tires sizes keep the overall diameter of the tire as close to the oem diameter as possible.
IMHO. A 225/235 is about as wide as I would go on the factory maxima 7" rim.
http://www.miata.net/garage/tirecalc.html
Originally posted by jjs
Does anyone have any figures on what the maximum tire section width and overall height is for the 17" SE/AE?
I am referring to potential rubbing in the wheelwell, etc...
NOT to what is safe and what is not as far as the whole rim size fight goes!!!
Specifically I am entertaining the idea of Dunlop SP Sport A2's in 235/55 17 98H. While maybe not a razor sharp as a 50 series or lower, my only concern is that they are .8" wider in section width and a whopping 1.7" wider in tread width than stock. They are also 1.2" higher than the RE92's.
Thanks!
Does anyone have any figures on what the maximum tire section width and overall height is for the 17" SE/AE?
I am referring to potential rubbing in the wheelwell, etc...
NOT to what is safe and what is not as far as the whole rim size fight goes!!!
Specifically I am entertaining the idea of Dunlop SP Sport A2's in 235/55 17 98H. While maybe not a razor sharp as a 50 series or lower, my only concern is that they are .8" wider in section width and a whopping 1.7" wider in tread width than stock. They are also 1.2" higher than the RE92's.
Thanks!
Thread Starter
Senior Member
Joined: Apr 2001
Posts: 4,968
I am not going with the widest I can...
I simply want to know what boundaries there are for mounting tires of various sizes.
I indicated a 235 tire above and actually the rim sizes allowed (according to Tire Rack) are 6.5"-8.5". Well within specs now famous from the 7" 'controversy'.
The SP A2's simply had a good price, one helluva treadwear number...420 (even though I know this varies greatly between manufacturers, it beats the heck out of our stock 160). I am also not concerned with giving up some cornering for longer life, better traction, lower cost and maybe as a benfit, a slightly more comfortable ride.
I indicated a 235 tire above and actually the rim sizes allowed (according to Tire Rack) are 6.5"-8.5". Well within specs now famous from the 7" 'controversy'.
The SP A2's simply had a good price, one helluva treadwear number...420 (even though I know this varies greatly between manufacturers, it beats the heck out of our stock 160). I am also not concerned with giving up some cornering for longer life, better traction, lower cost and maybe as a benfit, a slightly more comfortable ride.
Joined: Sep 2000
Posts: 4,728
From: City of the Fallen Angel, CA
Re: I am not going with the widest I can...
Originally posted by jjs
I simply want to know what boundaries there are for mounting tires of various sizes.
I indicated a 235 tire above and actually the rim sizes allowed (according to Tire Rack) are 6.5"-8.5". Well within specs now famous from the 7" 'controversy'.
The SP A2's simply had a good price, one helluva treadwear number...420 (even though I know this varies greatly between manufacturers, it beats the heck out of our stock 160). I am also not concerned with giving up some cornering for longer life, better traction, lower cost and maybe as a benfit, a slightly more comfortable ride.
I simply want to know what boundaries there are for mounting tires of various sizes.
I indicated a 235 tire above and actually the rim sizes allowed (according to Tire Rack) are 6.5"-8.5". Well within specs now famous from the 7" 'controversy'.
The SP A2's simply had a good price, one helluva treadwear number...420 (even though I know this varies greatly between manufacturers, it beats the heck out of our stock 160). I am also not concerned with giving up some cornering for longer life, better traction, lower cost and maybe as a benfit, a slightly more comfortable ride.
Thread Starter
Senior Member
Joined: Apr 2001
Posts: 4,968
Two things....
1. Which one are you referring to...the miata tire calc site?
2. If your concern and what I have overlooked is a speedo calibration, I can live with that. Over the years I have had an '88 5.0 Mustang with off size tires, and actally still have a '97 Ram with taller/wider than stock. I have gotten rather good at programming my own head to take into account a recalibration on the fly. A couple of days in any car and I know which side of the 'real' MPH the needle should be on.
Thanks!
2. If your concern and what I have overlooked is a speedo calibration, I can live with that. Over the years I have had an '88 5.0 Mustang with off size tires, and actally still have a '97 Ram with taller/wider than stock. I have gotten rather good at programming my own head to take into account a recalibration on the fly. A couple of days in any car and I know which side of the 'real' MPH the needle should be on.
Thanks!
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