B.F.Goodrich says NO to LT tires
I was checking out replacement tires for my fiver. I emailed B.F.Goodrich telling them I wanted to replace my ST tires with LT tires and asked which Commercial T/A tire would work on my trailer. This ...
Forum Discussion
airstream wrote:
Remember, when using LTs and Ps on trailers, they should be derated by about 10% according to the tire & rubber trade association.
LT tires have no reduced capacity requirements. Only the P tire.
RMA
Passenger tire loadcarrying
capacity must be reduced by dividing by
1.10 for light truck applications. For example:
P235/75R15 which has a maximum load capacity for
passenger vehicle application = 2028 lbs. For a light
truck application, using the formula, the maximum
load capacity would be 2028 / 1.10 = 1844 lbs.
NHTSA
FMVSS 571.110
S4.2.2.2 When passenger car tires are installed on an MPV, truck, bus, or trailer, each tire's load rating is reduced by dividing it by 1.10 before determining, under S4.2.2.1, the sum of the maximum load ratings of the tires fitted to an axle.
