Tires ~ Inside-Outside
Super Moderator
Joined: May 2006
Posts: 18,398
From: Wisconsin
TireRack has a good explanation.
http://www.tirerack.com/tires/tirete...jsp?techid=180
Symmetric non-directional tires are what you'd call "normal". They can go any which way.
Directional tires have tread patterns like arrows or something that looks like it points in one direction like my first picture. There's no difference between inboard & outboard shoulders, but they clearly point in one direction of rotation.
Asymmetric tires don't have a direction of rotation, but the outboard shoulder looks different from the inboard shoulder. My second picture is a tire that is obviously asymmetric. In spite of the way it looks, that second picture is not directional (according to Dunlop).
Your tires are asymmetric, but the difference is kinda subtle. You have to look at the curvature of the siping on the shoulders of the tire. The guy mounting them must not have noticed.
I'm gonna move this over to the "Tire/Wheel" section.
http://www.tirerack.com/tires/tirete...jsp?techid=180
Symmetric non-directional tires are what you'd call "normal". They can go any which way.
Directional tires have tread patterns like arrows or something that looks like it points in one direction like my first picture. There's no difference between inboard & outboard shoulders, but they clearly point in one direction of rotation.
Asymmetric tires don't have a direction of rotation, but the outboard shoulder looks different from the inboard shoulder. My second picture is a tire that is obviously asymmetric. In spite of the way it looks, that second picture is not directional (according to Dunlop).
Your tires are asymmetric, but the difference is kinda subtle. You have to look at the curvature of the siping on the shoulders of the tire. The guy mounting them must not have noticed.
I'm gonna move this over to the "Tire/Wheel" section.
Last edited by JimBlake; Oct 9, 2015 at 04:12 PM.
Super Moderator
Joined: May 2006
Posts: 18,398
From: Wisconsin
This is for Biffy44...
You're gonna look for markings when you rotate your tires. If they have an arrow showing direction of rotation, then you can only rotate them front-to-back. Not across the car. The only way to rotate directional tires across to the other side is to have them dismounted & flipped the other way on the rim.
If they say "Inside" and/or "Outside" then you CAN rotate them across to the other side. You would get in trouble if they were mounted on the rims the wrong way. That's what happened to Prospector.
You're gonna look for markings when you rotate your tires. If they have an arrow showing direction of rotation, then you can only rotate them front-to-back. Not across the car. The only way to rotate directional tires across to the other side is to have them dismounted & flipped the other way on the rim.
If they say "Inside" and/or "Outside" then you CAN rotate them across to the other side. You would get in trouble if they were mounted on the rims the wrong way. That's what happened to Prospector.
Thread Starter
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Senior Member
Joined: Apr 2015
Posts: 712
From: Cincinnati, OH
TireRack has a good explanation.
http://www.tirerack.com/tires/tirete...jsp?techid=180
Symmetric non-directional tires are what you'd call "normal". They can go any which way.
Directional tires have tread patterns like arrows or something that looks like it points in one direction like my first picture. There's no difference between inboard & outboard shoulders, but they clearly point in one direction of rotation.
Asymmetric tires don't have a direction of rotation, but the outboard shoulder looks different from the inboard shoulder. My second picture is a tire that is obviously asymmetric. In spite of the way it looks, that second picture is not directional (according to Dunlop).
Your tires are asymmetric, but the difference is kinda subtle. You have to look at the curvature of the siping on the shoulders of the tire. The guy mounting them must not have noticed.
I'm gonna move this over to the "Tire/Wheel" section.
http://www.tirerack.com/tires/tirete...jsp?techid=180
Symmetric non-directional tires are what you'd call "normal". They can go any which way.
Directional tires have tread patterns like arrows or something that looks like it points in one direction like my first picture. There's no difference between inboard & outboard shoulders, but they clearly point in one direction of rotation.
Asymmetric tires don't have a direction of rotation, but the outboard shoulder looks different from the inboard shoulder. My second picture is a tire that is obviously asymmetric. In spite of the way it looks, that second picture is not directional (according to Dunlop).
Your tires are asymmetric, but the difference is kinda subtle. You have to look at the curvature of the siping on the shoulders of the tire. The guy mounting them must not have noticed.
I'm gonna move this over to the "Tire/Wheel" section.
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