Q:
I’ve noticed that the tires available on your web
site have a B, C or D rating but I do not know what the current, and
original, rating is of tires are that are on the trailer, only the size.
Please advise how I should determine the best tire for my trailer.
A:
The load range refers to the load rating of the
trailer tire. The higher the letter = higher the load capacity. And
usually more costly, as well.
Example:
Load range B is
a 4 ply tire rated at 1,045
Load range C is
a 6 ply tire rated at 1,120
Load range D is
a 8 ply tire rated at 1,200
To help you determine which trailer tire load
range you need, please read the following; Lets assume you have a single
axle trailer, two tires (LR C). You would multiply the load capacity
times two. 1,120 x 2 = 2240 lb you can haul on the trailer
tires.
Please note, you must take your axle capacity
into account as well. If you have a 2000 lb axle you should match your
tires to the axle rating. Therefore a LR B (1045 x 2 = 2090 lb) would be
sufficient and more economical as well.
That means the weight of the trailer, plus the
weight of the load, is what your trailer tires and axle are rated to
haul. Another example would be,
if your axle is rated at 2,000 lb and your trailer weighs 600 lb, you
would only be able to haul up to an additional 1400 lb.
