Yes i might have to do that. I have friends in the US but i am out of touch with them right now. Might have friends elsewhere that can get the same part or similar. I ended up finding out who manufactured the trailor and it is a US company called Instep. I emailed their website to see if they have an Australian distributor...seems like they do in Melbourne but half the time people put stuff on their website that is out of date....so will wait for the reply :0) I really should have tightened the nut on the damn bike...but i was in a hurry and then the motor didn't sound so good all the way today. It was distracting and i was upset that i just spent $1000 on a new motor, battery and retrofitting....will have to wait til the rain stops to see what the problem is and if i have to take it back to the shop :0(