A "B-train assembly" is a rigid frame extension attached to the rear frame of a semitrailer which allows for a fifth wheel connection point for a second semitrailer.
Ca. Veh. Code § 230.5
A "B-train assembly" is a rigid frame extension attached to the rear frame of a semitrailer which allows for a fifth wheel connection point for a second semitrailer.
Ca. Veh. Code § 230.5