tinner wrote:
I'm sure on a commercial trailer with dual wheels/axles there isn't as much stress on the tires/wheels when turning because of having a second tire close helping carry the weight as there is on a tri axle setup with single wheels/tires.
True for a tandem dually axle trailer (rv and non rv) but Commercial trailers I referred to were the same tandem and triaxle set up like any rv trailer using the same axles/wheel and tires.
I have the Sailun S637 LT G on a 36' GN triaxle stock trailer with three 7k Dexter axles. However these Sailuns came from the transitional era when the S637 LT and ST were the same part number.
However the OP 26.5' 5th wheel doesn't need the Sailuns so were just flappin' our jaws talking about a commercial grade all steel carcass tire which has nothing in common with a ST E/D/C tire other than being black.