newb on an old Concorde PDM
08-20-10 | 11:22 AM
#1
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Joined: Aug 2010
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newb on an old Concorde PDM
purchased a sweet old TSX bike from a local gentleman. Installed a carbon fork , threadless headset, new stem and wider bars.
Bike is full Dura Ace w/ downtube shifters. Derailleur is part #7402. Did Shimano make STI shifting in these years and if so, are they hard to find? Bar end would be even better!
When I raced in the 80's I used a suntour ratcheting bar end shifter w/ a drilled out campy Super Record rear DRLR (may be showing my age here).
Thanks in advance, Dino
Bike is full Dura Ace w/ downtube shifters. Derailleur is part #7402. Did Shimano make STI shifting in these years and if so, are they hard to find? Bar end would be even better!
When I raced in the 80's I used a suntour ratcheting bar end shifter w/ a drilled out campy Super Record rear DRLR (may be showing my age here).
Thanks in advance, Dino
Last edited by dino2000; 08-20-10 at 11:36 AM.
08-20-10 | 11:56 AM
#2
Senior Member
Joined: Sep 2009
Posts: 1,390
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From: EagleRiver AK
More that you probably ever wanted to know about Dura-Ace compatability can be found here;
https://www.sheldonbrown.com/dura-ace.html
Any Dura-ace derailler can be used with STI, potential limiting factor is the freewheel or casette. If the rear cluser is 7 or 8 speed, you should be able to use 8 speed STI levers (one missing ghost shift if you have 7-speed). If you have an early 6-speed casette or freewheel then you will need to upgrade to 7 or 8 speed to use STI.
https://www.sheldonbrown.com/dura-ace.html
Any Dura-ace derailler can be used with STI, potential limiting factor is the freewheel or casette. If the rear cluser is 7 or 8 speed, you should be able to use 8 speed STI levers (one missing ghost shift if you have 7-speed). If you have an early 6-speed casette or freewheel then you will need to upgrade to 7 or 8 speed to use STI.
08-20-10 | 12:57 PM
#3
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From: San Diego, CA
08-20-10 | 01:46 PM
#4
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From: Shady Pines Retirement Fort Wayne, In
Bikes: Too many to list here check my signature.
great looking bike. is the guy inside worshiping it?
I had thought that certain DuraAce RDs only worked with duraace shifters?
I had thought that certain DuraAce RDs only worked with duraace shifters?
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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
08-20-10 | 03:48 PM
#6
Nice bike and welcome to BF!
I think that 7402 RD is 8-spd so you will need a DuraAce shifter to make it index correctly. You can find 8-spd DuraAce STI levers on ebay but they won't come cheap. There are also Dura Ace bar-end shifters that are supposed to be compatible with 8 or 9 speed DuraAce RD's but I've heard some folks claim they are not truly compatible, others say they are.
Anything wrong with the old fork?
I think that 7402 RD is 8-spd so you will need a DuraAce shifter to make it index correctly. You can find 8-spd DuraAce STI levers on ebay but they won't come cheap. There are also Dura Ace bar-end shifters that are supposed to be compatible with 8 or 9 speed DuraAce RD's but I've heard some folks claim they are not truly compatible, others say they are.
Anything wrong with the old fork?
08-23-10 | 08:39 AM
#7
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old fork is in pristine condition, as was the Cinelli Giro bar/ stem. I got the fork so I could mount the bars up higher on the threadless steerer. Back ain't what it used to be. Left it long so I could shorten as I dial in the fit.
