per http://www.goodyear.com/nat/pcit_cat/products/g159.html, LT225/75R16 E
load are rated for 2,680 pounds load @ 65 mph when inflated to 80 psi.
Rubber degrading [becomes brittle and cracks] is accelerated by UV from the
sun (cloth or even paper will shield], Ozone, load [sitting in one spot for
a long time like stretched rubber bands] and the more volatile
hydrocarbons. Surface cracks allow the rubber to tear. If you don't
protect the tires from these elements, the best the manufacturer will
guarantee their rating for is five years. If on the other hand, you protect
the tires from these elements, they will last longer and that depends on
what you do. That is why an unprotected exposed spare is usually the first
to blow.
How much the cost of new tires are worth to you compared to being stuck on
the side of the road with some side panels ripped off by a blown tire is a
personal risk. For me, it's not worth the risk of it happening at speed in
the middle of nowhere. I just look at it as another part of insurance.
Divide the cost of new tires by 5 and add that to your yearly insurance cost.
load are rated for 2,680 pounds load @ 65 mph when inflated to 80 psi.
Rubber degrading [becomes brittle and cracks] is accelerated by UV from the
sun (cloth or even paper will shield], Ozone, load [sitting in one spot for
a long time like stretched rubber bands] and the more volatile
hydrocarbons. Surface cracks allow the rubber to tear. If you don't
protect the tires from these elements, the best the manufacturer will
guarantee their rating for is five years. If on the other hand, you protect
the tires from these elements, they will last longer and that depends on
what you do. That is why an unprotected exposed spare is usually the first
to blow.
How much the cost of new tires are worth to you compared to being stuck on
the side of the road with some side panels ripped off by a blown tire is a
personal risk. For me, it's not worth the risk of it happening at speed in
the middle of nowhere. I just look at it as another part of insurance.
Divide the cost of new tires by 5 and add that to your yearly insurance cost.