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PostPosted: Fri Jan 23, 2009 11:32 pm 
Old School Grand Master
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Joined: Mon Jul 03, 2006 12:15 am
Posts: 3348
Location: Up north
Im having trouble getting the downtube shifters to keep tension on the cable resulting in rear mech falling back down to bottom cog :(

Any helpfull tips and advice appreciated :wink:

Are the shifters worn?

the shifters seem to be tightened down :?


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PostPosted: Fri Jan 23, 2009 11:35 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Wed Oct 05, 2005 7:45 pm
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Location: kent
I think shledon brwon call this auto shifting .

i had same problem with some xc pro thumbshifters , and as advised by the great man himself , all i had to do was clean and grease the cables under the BB .

worked fine ever since .


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 Post subject: whow
PostPosted: Fri Jan 23, 2009 11:39 pm 
Old School Grand Master
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Location: Up north
cchris2lou wrote:
I think shledon brwon call this auto shifting .

i had same problem with some xc pro thumbshifters , and as advised by the great man himself , all i had to do was clean and grease the cables under the BB .

worked fine ever since .


hey Chris, im certainly going to give that a go :D

I guess i need to spend a little more time and patience on it :oops:

Thanks buddy.


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PostPosted: Sat Jan 24, 2009 12:03 am 
Retro Guru
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cchris2lou wrote:
I think shledon brwon call this auto shifting .

i had same problem with some xc pro thumbshifters , and as advised by the great man himself , all i had to do was clean and grease the cables under the BB .

worked fine ever since .


Sheldon Brown saved my U-Brake..... one of the best resources out there :D


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PostPosted: Mon Jan 26, 2009 12:23 am 
Retro Guru

Joined: Sun Dec 14, 2008 2:11 pm
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dirtjumper_dmr wrote:
Sheldon Brown saved my U-Brake.....


Somebody should release an album with that title. :D


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PostPosted: Wed Jan 28, 2009 3:34 pm 
rider | rBoTM Winner
rider | rBoTM Winner
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Joined: Fri Jan 25, 2008 1:42 pm
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Location: Wakefield, Yorkshire
Are they clamp-on or braze-on?

If they're clamp on and there isn't a little stud under the tube then they can slip down the tube under tension.

If they're braze-ons then this is a situation where lubrication isn't a help when assembling them, Dry but clean is better!


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PostPosted: Wed Jan 28, 2009 6:20 pm 
retrobike rider
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Location: Bristol
The shifters aren't tightened down enough.


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 Post subject: i just
PostPosted: Thu Jan 29, 2009 11:08 am 
Old School Grand Master
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Joined: Mon Jul 03, 2006 12:15 am
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Location: Up north
think they are screwed :(

Ive tried all-sorts but to no avail!

I reckon after much faffing that it as worn away inside.

I managed to find a pair of NOS replacements for decent money :wink:

The bike/project will be unveiled once they have arrived and been fitted :D


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