The classic 12-metre tandem spread-axle tilt

robert1952:

Carryfast:
It’s difficult to see the idea of these.It just creates more unnecessary tyre scrub when turning and creates havoc with load distribution by putting more weight on the rear axle and removing it from the drive. :confused:

Spot on CF! This is why they invented the tri-axle trailer with all the extra cost and extra wear of a third axle. It worked on all counts, so the industry accepted it and stuck with it. I only cite the old tandem spread-axle here as an industry model because it is a (slightly romantic) evocation of those days :wink: . Robert

You could carry more weight on a spread axle, if you went for a tri axle you ended up with 2 different tyre sizes