Only used one once but seem to remember it had a wedge at back of kingpin which steered rear axle on trailer,pulled a standard tri axle one and the rear steer locked off,on the urban it didn’t.
Only used one once but seem to remember it had a wedge at back of kingpin which steered rear axle on trailer,pulled a standard tri axle one and the rear steer locked off,on the urban it didn’t.