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Posted: Fri Mar 31, 2006 4:46 pm
by Racing Aardvark
mises wrote:Campagnolo officially doesn't make DT shifters any more but the bar end ones are the same parts and functionality so you can get those and convert them.


You should be able to find them used. Heck, I'm pretty certain I still have the old 7 speed elver that came on my Serotta. Since there's no ratchet in the FD DT shifters, it doesn't matter what generation it is.

You can always dremel away a considerable amount of material. That was pretty common in the days of DT shifters.

Posted: Fri Mar 31, 2006 4:46 pm
by Weenie

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Posted: Fri Mar 31, 2006 5:19 pm
by PNuT
Boonen wrote:Obvious all older steel bikes had these


you must be a youngster :lol:

Posted: Fri Mar 31, 2006 5:24 pm
by Boonen
PNuT wrote:
Boonen wrote:Obvious all older steel bikes had these


you must be a youngster :lol:


well, I still have one of these frames hanging in the garage that I used to race on that now serves me as a fixed gear bike :wink:

Posted: Fri Mar 31, 2006 5:36 pm
by simon
as i read through this thread, i asked myself if this would be a thing to consider on a tt bike?there, you definitely don't use the front shifter too often. on mine, i have bosses to mount such a lever...what do you think about it? or does the lever on the downtube affect aerodynamics more in a negative way than the weight savings help?

Posted: Fri Mar 31, 2006 7:09 pm
by PNuT
Boonen wrote:
PNuT wrote:
Boonen wrote:Obvious all older steel bikes had these


you must be a youngster :lol:


well, I still have one of these frames hanging in the garage that I used to race on that now serves me as a fixed gear bike :wink:


i have a cinelli steel frame hanging in my shed that has none of these hangers, the rear mech guides run above the bottom bracket :lol:

Posted: Fri Mar 31, 2006 7:12 pm
by PNuT
simon wrote:as i read through this thread, i asked myself if this would be a thing to consider on a tt bike?there, you definitely don't use the front shifter too often. on mine, i have bosses to mount such a lever...what do you think about it? or does the lever on the downtube affect aerodynamics more in a negative way than the weight savings help?


when i got my TT frame resprayed i had downtube bosses welded on & use a downtube lever

Posted: Fri Mar 31, 2006 7:12 pm
by Boonen
PNuT wrote:
Boonen wrote:
PNuT wrote:
Boonen wrote:Obvious all older steel bikes had these


you must be a youngster :lol:


well, I still have one of these frames hanging in the garage that I used to race on that now serves me as a fixed gear bike :wink:


i have a cinelli steel frame hanging in my shed that has none of these hangers, the rear mech guides run above the bottom bracket :lol:


Aha, now I know what you meant by calling me a youngster :lol:

Re: Downtube shifter

Posted: Wed Apr 01, 2020 1:21 pm
by kamokamo12
I made my own electric downtube shifter.
This is non-indexed and classic.

Re: Downtube shifter

Posted: Thu Apr 02, 2020 12:43 am
by sib
Amazing..!
How does it feel on an actual ride?

Re: Downtube shifter

Posted: Thu Apr 02, 2020 12:56 am
by AJS914
Cool project!

Re: Downtube shifter

Posted: Thu Apr 02, 2020 4:51 am
by Stendhal
April 1?

Re: Downtube shifter

Posted: Thu Apr 02, 2020 7:19 am
by kamokamo12
Operation is light enough to be surprised. :D

Re: Downtube shifter

Posted: Tue Oct 20, 2020 6:26 pm
by DolanDriver
Hi. I am looking for some advice in relation to a renovation of a 1987 Raleigh Competition Reynolds 531C frame and forks that I am hoping to restore to working order. I say "hope" because it has sat in my garden shed for the last 16 years slowing gathering dust and some rust. The frame will go to a powder coaters for blasting and IF the rust on parts of the frame is just on the surface and it is structually sound, I'll work towards putting the frame and forks back on the road.

My plan is to build up the bike using mostly modern budget components. They'll have a silver finish so will mimick the look of a late-80's /early 90's race bike. It will have components from various manufacturers, like Tektro (brakes and brake levers), Stronglight (Chainset), Quando hubs on TB14s and my original 3TTT quill stem and bars. The cassette is a Shimano 10 speed so I'll need a Shimano derailleur and downtube combination that will work with the cassette I have. I've had an initial look at downtube shifters and Dura Ace 7700 downtube shifters seem interesting. Even though they are 9 speed, they have the option of changing from indexed to friction which I understand the 7900 shifters cannot do. They remain in index mode only. If I sacrifice the highest sprocket at the bottom of the cassette, will the 7700 shifters work well in indexed mode on the remaining nine sprockets using a suitable derailleur from Shimano? Will the indexing on the 7700 shifters match the spacing on the remaning nine sprockets? Or is there another set of shifters that would work well in indexed mode on this cassette? Thanks for any info anyone can offer.

DD.