jimboalee said:Don't bother with it.
If you're not a bike mechanic, you will get in all sort of problems trying to upgrade a Pug.
Peugeot did all sorts of strange things with thread sizes. Some parts will be obselete. Especially the headset.
What size is the frame?
I'm searching for a 18 or 19" ladies bike.
I have no idea what size it is. For someone small, I know. The lady who had it is about 5" and I'm 5"3 so I gathered it would be okay for me (she had the seat down really low.)