Another day, another thing to look into. I was replacing mudguards on one of the bicycles, which required taking the rear wheel off and I have noticed some play in the rear derailleur. Good thing it was before anything serious happened. I guess I will have to check it every now and then, but I can't say I'm a fan of Huret nut and bolt derailleur attachment system.
Yes, the chain is loose on the upper pulley, photo was taken before I connected the links.
The bolt visible to the left of the hub axle is my high-precision, homemade wheel centering spacer. Essentially it's a piece of aluminium filed down to fit inside the dropout with two steel washers on both sides and a flathead screw going through. Another washer goes on that, then the mudguard stay, then another washer and a nut. The frame doesn't have mudguard eyelets and I didn't want to send it to a frame builder for modifications.
