June 17, 2025

Restoring my Peugeot PX-10 - Rear derailleur

A great tip in the video is to take a photo with your phone of the chain path through the derailleur.

The B-screw sets the clearance to the cluster. You check it with the derailleur set on the biggest cog in the rear. There should be a 5-6mm gap between the G cog on the derailleur and the cog.

Use mild thread locker to install. Torque to 8-10 N-m.

Cable end tips (crimps)

You can buy 100 of these on Amazon, so I did! I bought the ones designated "brake".
There are two sizes. Shift (1.2mm) and brake (1.4mm) There is a very nice tool from Park for these, but it costs $30. I will try using one of my assortment of wire crimping tools. I will only be doing this on rare occasions.

How about an indexed rear derailleur?

An Ultegra 8 speed derailleur costs $78 The shifters are another story. They usually get sold in a pair for around $200 and I would only convert my rear to an indexed setup. I think I would pitch this project to my local bike shop.
Have any comments? Questions? Drop me a line!

Tom's bike pages / tom@mmto.org