I just bought a Graziella tandem (pics will follow - it's incredible) with a 3 speed SA with a drum brake. The chain won't budge. I can't get the pin to move in or out. I'm assuming it's stuck in 3rd gear because I can peddle it and it seems to operate fine.
I found a guide for my hub. Do I need to break it down? Is it safe to ride in 3rd in the meantime or do you think I risk damaging it?