freewheel sprocket - 21 teeth

[GazK]

My 21 tooth sprocket has started jumping on my otherwise fine maillard course 6 speed freewheel. Does anyone have a replacement sprocket with low wear?

 

[Ian Raleigh]

Bloody hell! there is a chap who attends bike jumbles and his name is Francis Thurmer
This is a chap in the UK who has a massive range of NOS maillard sprockets and they are fairly cheap too.

Maybe contacting this guy and asking him if he knows of the chap and phone number http://www.bikejumbles.co.uk/

Look for Francis Thurmer in the below link, the bearded chap with the blue cap, thats him :facepalm:

http://www.bikejumbles.co.uk/

 

[Old Ned]

It also depends on which model of block and which sprocket on the block as there are distinct differences. I have quite a few Maillard sprockets which probably includes a 21.