not regular enough cleaning and lubing .......Cheers Ed
You could have a worn freewheel.
Ed --- the bike is immaculate - signs of regular maintenance etc
Foss--- freewheel in good condition ..no probs running with old chain but the NOS chain is wider - and chattering
i am sure it's a compatibility prob with the wider NOS chain
it is a 14-28T 5speed Maillard [France]............tooth thickness is 2.22mm
which is prob the reason the narrow inner links are distorted --- see OP
my Shimano 20T removal socket doesn't fit
guess i need a Maillard tool.?
anyone with a Shimano 14-28 5speed freewheel...?
what's the tooth thickness..?
cheers...john