When we are on the road I put a harness on SHIELA  and I also have a harness I hook SHIELA  to myself and I hook my harness to the trailer so we both pull the load some days SHIELA pulls the trailer  and me
Most days the bike and trailer weigh 150 kg plus depending on the distance from one town to the next
SHIELA has gotten so powerful I have a hard time to hold her if my bike did not have disc brakes I would not be able to hold her when she has her harness on  if she keeps getting stronger I  will have to  put a halter on her