[6pack] Rotating radial tires/tyres (Andrew Uprichard)

[Ed McGuirk]

The tire carcass does not care which side or which direction the tire is 
mounted. Various race tire manufacturers do mention that tires can be 
dismounted and remounted in the opposite direction in order to get more 
miles by wearing out both tire edges.

However if the the tread has a "V" pattern, there is only one direction 
that will sweep water to the outside of the tire. It won't matter in dry 
weather and it might be more noisy in the reverse direction but running 
a "V" tire in the reverse direction can reduce wet weather traction.

In general if the tire has an arrow printed on the side indicating tire 
rotation, it's usually best to keep that rotation direction. Otherwise 
tires can be moved to any corner of the car and even dismounted and 
remounted with the opposite side facing out.

ed mcguirk