PhillB
GT Fan
Not yet, but will take some more once the rain stops!!
Yellow Hobbs winter beater of distinction (WBOD)
- Thread starter Jonny69
- Start date
Jonny69
Senior Retro Guru
Another option for the gears might be Huret Jubilee which I forgot I had in a drawer at work:
I’ve never used it because I don’t have the shifters and there’s a critical spring missing on the front derailleur. This one (thanks random eBay pictures):
It serves a double function really, it does the springing but it’s also the inner parallel linkage. Without it the mechanism just loosely flaps about.
Lunchtime I decided to raid my pal’s box of scrap mechs etc. to see if there was a similar spring I could use. Found one on a later Sachs mech that might work:
It was close, but not quite long enough to wrap round the pivot. I also found a Shimano one which is a bit of a cludge but might work:
It’s not quite as tight as I might like it, but I might be able to make up a bit of something to take up the space between the spring and the pivot until I find a proper one.
I’ve never used it because I don’t have the shifters and there’s a critical spring missing on the front derailleur. This one (thanks random eBay pictures):
It serves a double function really, it does the springing but it’s also the inner parallel linkage. Without it the mechanism just loosely flaps about.
Lunchtime I decided to raid my pal’s box of scrap mechs etc. to see if there was a similar spring I could use. Found one on a later Sachs mech that might work:
It was close, but not quite long enough to wrap round the pivot. I also found a Shimano one which is a bit of a cludge but might work:
It’s not quite as tight as I might like it, but I might be able to make up a bit of something to take up the space between the spring and the pivot until I find a proper one.
fiveSixteenths
Senior Retro Guru
Lovely drillieum on that RM
fiveSixteenths
Senior Retro Guru
Oh yes
Guinessisgoodforyou
rBotM Winner
The jubilee is a beautiful mech.
Jonny69
Senior Retro Guru
This is a 10-speed 12-28 cassette with the rivets drilled out. Next to it is a 5/6/7-speed Uniglide/Hyperglide freehub, the same as the one on the wheel in the bike:
This is the wearing the 12-28 cassette minus the 28T cog and rear spacer, making a 9-speed 12-25 in pretty much the same space:
As long as the Huret Jubilee will move far enough outboard and it’s happy wearing a 10-speed chain, I’m good to go with this.
Can also run this as a 13-28 (which is about 1.5mm narrower) if you put a 2mm wire ring in the groove in the 13T cog. Clearance is clearance.
This is the wearing the 12-28 cassette minus the 28T cog and rear spacer, making a 9-speed 12-25 in pretty much the same space:
As long as the Huret Jubilee will move far enough outboard and it’s happy wearing a 10-speed chain, I’m good to go with this.
Can also run this as a 13-28 (which is about 1.5mm narrower) if you put a 2mm wire ring in the groove in the 13T cog. Clearance is clearance.
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