Renze
Elite Member
Surge brakes are actually great. They are much stronger than electric brakes (disc style), totally proportional, and need no adjusting or tow vehicle mounted actuator. Like I said, I get mine all with lock out solenoids or you can add one for under $40 and you are all set. Very nice if you tow a trailer with multiple vehicles.
Chris
Over here in Europe, Knott, WAP and BPW have good functioning autorelease surge brakes, that let the brake shoes retract even if the bowden is pulling them out, when the direction of rotation is reversed.
Alko also has a system but its prone to get stuck.
Older trailers around here, have this manual latch to prevent the brake from being actuated when reversing. the last 10 years all trailer axles have backmatic brakes as standard. Also automatic slack adjusters.