You are reading a single comment by @luckyskull and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@luckyskull
This is from sheldon brown(http://sheldonbrown.com/upgrade-gears.html). He would not advise me to kill a puppy:
The Simplex style dropout is fairly common on older, higher-quality French bikes, including the Peugeut PX-10, Gitane Tour De France, Mercier 300, etc. Although the Simplex hanger looks similar to the Campagnolo type, it differs in two important ways: it is not threaded, and it lacks the locating notch on the bottom.
It is not difficult to convert a Simplex hanger to work with a modern derailer. All that is required is to thread it with an appropriate tap, and file a notch into the bottom of it for the "B Tension" screw to bear against.