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Directional tires; can u run them backwards?

9.1K views 21 replies 14 participants last post by  SUPERTOM  
#1 ·
Just wondering if it will cause any harm running directional tires backwards for a very short time just to test something. Obviously they wouldnt work too well in the rain, but will it cause anything harmfull?
 
#5 ·
Driving it a short period on dry pavement shouldn't adversely affect the tire itself, but to do so long term (such as a couple weeks or longer) could result in the tire coming apart.
 
#6 · (Edited)
well im investigating a problem with my car pulling left, and i was reading that some tires the rubber isnt exactly ballanced and can cause a car to pull to one side. This was taken from another forum.

The other type is due to small differences in the tire rolling circumference. This variation can be thought of as small differences in the number of times the tires rolls (under load) per mile driven. You can't measure this with a tape measure, it's that subtle. A small difference in this rolling circumference (or revolutions per mile) is not enough to work the differential and allow different tire rolling velocities, so the front end acts like a solid axle.

This is like putting a smaller wheel on one side of an wagon axle - then trying to make that axle roll straight (it's going to want to roll in circles, right?). If you put driving torque on it, the largerwheel gets the majority of the torque. This acts through the suspension and steering geometry to cause a torque steer toward the smaller tire


Have the dealer swap the tires left-to-right, and see if the torque steer changes. If it does, then it's the second type of torque steer - the only way to fix it is through tire replacement. If not, it's likely to be related to something in the engine mounts

So i just wanted to try this to rule out my tires in my torque steer problem.
 
#11 ·
you can run tham backwards for as long as you like ... there will be no detrimental effect on the tires .... the directional tread design primary function is to evacuate water so, it will not be fun in the rain but, in the dry there will be zero difference
 
#16 ·
My dad had to do this with his Yokohama's quite a bit. If I remember correctly they would wear weird and cause a lot of noise. Whatever the reason he did run them backwards for awhile. Like Luke said, I was always under the impression that directionals were to only better channel the water.
 
#22 ·
yeah I accidentally had mine on backwards for about a year until the alignment shop noticed. I didnt notice much diffrence and had no problems