Originally Posted by
Aubergine
Is this your bike?
If it is, the bike shown in 1986 will have standard British parts. The handlebar diameter at the clamp should be 25.6 mm.
The helicomatic is a potential problem, because they are no longer being made. To replace it, you would need a different rear hub or wheel. If it's still good, and you just need a lock ring, you should look on EBay.
By the way, I have the Corbier model. It is a nice bike to ride despite being at the bottom of the Peugeot line.
I believe the one I have is an '87 model due to the orange/yellow stripes that are also on the top tube. I don't know if that would make difference in specs. The only thing I need is the lockring as the helicomatic runs fine.
Do you know the dropout width? or any compatible rearhub/wheel without needing to spread the frame?
Also T-Mar, I believe its a quill stem, since it has all original parts. after reading up about the death bars haha, I'm sure it wasn't replaced because when I took it out the stem looked like it was torn like silly putty.