Downtube shifters on a downtube without them
07-23-10 | 07:25 PM
#1
Thread Starter
Senior Member
Joined: Feb 2008
Posts: 75
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From: Sacramento, California
Bikes: Specialized Hardrock fixed gear, Cannondale CAAD 7 with Sram Force
Downtube shifters on a downtube without them
I love downtube shifters. They're so much more simple than brifters, much more simple, and much more versatile in switching parts out. However, most decent mass-produced frames lack braze-ons for downtube shifters.
This lead me to the question: is it possible to run downtube shifters on a frame without braze-ons without actually brazing metal onto the frame? Thanks.
This lead me to the question: is it possible to run downtube shifters on a frame without braze-ons without actually brazing metal onto the frame? Thanks.
07-23-10 | 07:27 PM
#2
feros ferio
Joined: Jul 2000
Posts: 22,411
Likes: 1,876
From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
Yes, but you need a clamp w/ the correct shift lever bosses on it. These are not hard to find.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
07-23-10 | 07:37 PM
#3
Bianchi Goddess
Joined: Apr 2009
Posts: 28,962
Likes: 4,231
From: Shady Pines Retirement Fort Wayne, In
Bikes: Too many to list here check my signature.
if you want friction there are lots out there. indexing is a bit harder though. and of course your frame needs to be round for the clamp to fit. this IMHO is a serious downfall of the bike industry to make all frame to have brifeters on and not atleast have a few with the ability to put DT shifters on.
great looking bike.
OH PS most older bikes that had clamp on shifters or a clamp on housing stop had a 'stop' of some type to keep the clamp from sliding
great looking bike.
OH PS most older bikes that had clamp on shifters or a clamp on housing stop had a 'stop' of some type to keep the clamp from sliding
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One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
07-23-10 | 07:46 PM
#4
Bianchi Goddess
Joined: Apr 2009
Posts: 28,962
Likes: 4,231
From: Shady Pines Retirement Fort Wayne, In
Bikes: Too many to list here check my signature.
__________________
One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
07-23-10 | 08:27 PM
#5
feros ferio
Joined: Jul 2000
Posts: 22,411
Likes: 1,876
From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
Thanks, Bianchigirl. I am pretty partial to Bianchis, as well. 
My Capo Modell Campagnolo was built in 1959 in Vienna, Austria from British tubing and Italian lugs, with Campagnolo hubs, derailleurs, and shifters. The shifters and brakeset are original. The color scheme is almost historically accurate, with CyclArt's gorgeous stock metallic almost candy burgundy red replacing the original candy apple.
My Capo Modell Campagnolo was built in 1959 in Vienna, Austria from British tubing and Italian lugs, with Campagnolo hubs, derailleurs, and shifters. The shifters and brakeset are original. The color scheme is almost historically accurate, with CyclArt's gorgeous stock metallic almost candy burgundy red replacing the original candy apple.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
07-23-10 | 08:44 PM
#6
PanGalacticGargleBlaster
Joined: Apr 2009
Posts: 7,531
Likes: 9
From: Smugglers Notch, Vermont
Bikes: Upright and Recumbent....too many to list, mostly Vintage.
I had a hard time finding an indexed set of clamp on shifters so I made one using the clamp band from a Shimano downtube ratchet shifter and a set of shimano SL downtube shifters. Remove the ratchet shifters, screw on the indexed ones.
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--Don't Panic.
07-23-10 | 08:50 PM
#7
Senior Member
Joined: Dec 2001
Posts: 17,687
Likes: 12
From: n.w. superdrome
Bikes: 1 trek, serotta, rih, de Reus, Pogliaghi and finally a Zieleman! and got a DeRosa
I have just 2 words to say "Simplex retrofriction"
Photo courtesy Velobase
Photo courtesy Velobase
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Sono pił lento di quel che sembra.
Odio la gente, tutti.
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07-24-10 | 12:20 AM
#9
Thread Starter
Senior Member
Joined: Feb 2008
Posts: 75
Likes: 0
From: Sacramento, California
Bikes: Specialized Hardrock fixed gear, Cannondale CAAD 7 with Sram Force
All the clamp-on shifters i've seen are 28.6.. I was really hoping there'd be ones with bigger clamps as to use more modern frames with bigger tubing. What would be needed to redo it to make the clamp larger?
