Jonny69
Senior Retro Guru
They’re Michelin World Tour 650B x 35
Late 40s / Early 50s René Herse tip find
- Thread starter Jonny69
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Jonny69
Senior Retro Guru
Back to the derailleur restoration project, I had some round aluminium bar stock which would have made an ideal shim material. I started by drawing round it onto some paper and then transposing the shapes of the worn derailleur and the pivot. I planned to bore into the end with a 19mm cutter (same diameter as the pivot), part it off and finish it by hand. The idea being I was going use the paper template to work out where the bore needed to go, then do the rest by hand with a file.
But I had a lab clear out a few weeks ago and without thinking threw out the bit of material I wanted to use
The reason I haven’t just bought another secondhand derailleur is these early Cyclo derailleurs seem to go for a lot of money for what they are. However, I spotted a very filthy similar model on eBay which I think might use the same arm. I put in a low but not-too-cheeky offer and it’s on its way. So, fingers crossed 1) it fits; and fingers crossed 2) it’s not too worn.
But I had a lab clear out a few weeks ago and without thinking threw out the bit of material I wanted to use
The reason I haven’t just bought another secondhand derailleur is these early Cyclo derailleurs seem to go for a lot of money for what they are. However, I spotted a very filthy similar model on eBay which I think might use the same arm. I put in a low but not-too-cheeky offer and it’s on its way. So, fingers crossed 1) it fits; and fingers crossed 2) it’s not too worn.
Jonny69
Senior Retro Guru
Filthy Cyclo has arrived:
It is indeed filthy and a bit gummed up. I haven’t got the original with me so I can’t do a direct comparison, but this looks like an all-steel version of the one that was on the bike. So it’s got a steel arm, steel nuts and a steel lower jockey wheel instead of an alloy guide pulley. Still a bit of a fingers crossed job, but it’s looking hopeful.
Side by side pics for comparison:
It is indeed filthy and a bit gummed up. I haven’t got the original with me so I can’t do a direct comparison, but this looks like an all-steel version of the one that was on the bike. So it’s got a steel arm, steel nuts and a steel lower jockey wheel instead of an alloy guide pulley. Still a bit of a fingers crossed job, but it’s looking hopeful.
Side by side pics for comparison:
