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Tandem Cycling A bicycle built for two. Want to find out more about this wonderful world of tandems? Check out this forum to talk with other tandem enthusiasts. Captains and stokers welcome!

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Old 04-03-14, 12:34 PM   #1
DrMarkR
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Ultegra Fr Derailleur Triple Ring/Shifter

I have an Ultegra 6700 triple fr derailleur and 6700 left shifter (triple) that I'm looking to trade for the same model in double. If anyone has such and is interested in trading, please contact me. I'd be happy to purchase the same if someone has changed from double to triple ring setup, and wants to be rid of the double. My triple parts have low hours and are in excellent condition.

MR
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Old 04-03-14, 12:50 PM   #2
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Why do you want to bother?

Just set the limit screws correctly, and what you have works fine on a double.
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Old 04-04-14, 02:15 PM   #3
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Using the limit screws on your current derailleur is one option, but I have found that double FDs do work better than triple FDs for double cranks. Fortunately, FDs are one of the cheapest components.

The current shifter will also work fine. I would set the shifter o that the inner and outer rings correspond to the middle and outer positions for the shifter. This will leave the inner position of the shifter doing nothing, it will just make the cable really slack.

The other option is to use the shifter's inner and middle positions for the 2 rings; the outer position would then be inaccessible due to the limit screw. This should work, but I've had personal experience of this causing the shift mechanism to fail because if you do try to shift up when already in the outer ring then the shifter experiences a lot of force that it wasn't designed to handle in that way.
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Old 04-04-14, 06:02 PM   #4
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Quote:
Originally Posted by DrMarkR View Post
I have an Ultegra 6700 triple fr derailleur and 6700 left shifter (triple) that I'm looking to trade for the same model in double. If anyone has such and is interested in trading, please contact me. I'd be happy to purchase the same if someone has changed from double to triple ring setup, and wants to be rid of the double. My triple parts have low hours and are in excellent condition.

MR
I would be willing to trade if you are still interested. My FD is a braze on mount though.
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Old 04-05-14, 10:27 PM   #5
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I "bothered" because I suspected there would be someone such as DK that needed a triple setup....plus I wanted the double pieces, not 'stop adjusted' parts on my single that this going on.

DK, I'll send you a PM about the cpmponents....

MR
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Old 04-06-14, 11:07 AM   #6
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If anyone else needs one of these triple FDs, I've also got a couple FD-6703 34.9mm clamp-on style. One brand new, one used for a couple rides only. PM me.
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Old 04-07-14, 06:56 AM   #7
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Originally Posted by DrMarkR View Post
I "bothered" because I suspected there would be someone such as DK that needed a triple setup....plus I wanted the double pieces, not 'stop adjusted' parts on my single that this going on.

DK, I'll send you a PM about the cpmponents....

MR
While there may be some advantage to changing the derailleur, the shifter doesn't make a difference. There isn't a problem with having an extra click in the shifter. All Shimano 105 shifters, for use with double or triple setups had stops for 3 chainrings. In those goroupsets there wasn't a specific double or triple shifter.
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Old 04-07-14, 08:56 AM   #8
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While there may be some advantage to changing the derailleur, the shifter doesn't make a difference. There isn't a problem with having an extra click in the shifter. All Shimano 105 shifters, for use with double or triple setups had stops for 3 chainrings. In those goroupsets there wasn't a specific double or triple shifter.
True for 8 and 9sp, but I'm pretty sure the 10sp shifters are different...
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Old 04-07-14, 12:08 PM   #9
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True for 8 and 9sp, but I'm pretty sure the 10sp shifters are different...
Shimano 105 5600-series shifters (10-speed with cables outside of bar tape) were double or triple compatible (whereas Ultegra and Dura Ace of the same generation, 6600 and 7800 series, were double or triple specific). For the 5700-series, 105 also went to separate double and triple specific LH shifters, and I believe that's also true for the current-generation Tiagra, 4600.
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Old 04-07-14, 02:36 PM   #10
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Shimano 105 5600-series shifters (10-speed with cables outside of bar tape) were double or triple compatible (whereas Ultegra and Dura Ace of the same generation, 6600 and 7800 series, were double or triple specific). For the 5700-series, 105 also went to separate double and triple specific LH shifters, and I believe that's also true for the current-generation Tiagra, 4600.
I was only speaking to Ultegra....
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