Big Truck:
We run both drum/disc frigo trailers and always prefer to pull a disc braked one.Had a tipper trailer for 4yrs with SAF small discs loaded to 44T 8×day and through wheel wash same when on quarry work.
Never had any bother with calipers nor discs cracking,
Fitter could change pads on the 6wheels in less than an hour!!!Sent from my SM-J500FN using Tapatalk
Thats the small discs, the small bpw disc set up is the same ie pad can be done with wheels on.
I would bet if you ask any hgv mech what he prefers and it will be discs all day long, you might not think what the mech thinks is relevant, but if hes happy you will get abetter job.