Ultegra 6600 Front Derailleur Adjustment?
09-03-20, 02:23 PM
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Ultegra 6600 Front Derailleur Adjustment?
Hey everyone -
So I recently replaced my 105 triple with an Ultegra 6600 double and I'm having a bit of a tough time getting the front derailleur perfect. I know I'm going to get some chain rub when I'm completely cross-chained, but I'm getting some rub in the big ring and little cog and I can't seem to get the limit screws to dial this out. Is there some sort of trick to doing the FD adjustment properly? My shifters didn't come with any sort of barrel adjuster for the FD - would it be worth buying something like this or this?
Thanks!
So I recently replaced my 105 triple with an Ultegra 6600 double and I'm having a bit of a tough time getting the front derailleur perfect. I know I'm going to get some chain rub when I'm completely cross-chained, but I'm getting some rub in the big ring and little cog and I can't seem to get the limit screws to dial this out. Is there some sort of trick to doing the FD adjustment properly? My shifters didn't come with any sort of barrel adjuster for the FD - would it be worth buying something like this or this?
Thanks!
09-03-20, 02:37 PM
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In line adjusters are great for fine tuning cable tension. The limit screw limits the inner most and outer most travel of the front mech, it can't 'dial out' under-extension of the mech itself...I assume the gear cables don't run through cable stops on the down tube, or do you still use down tube shifters... A question about the 105 triple mech you replaced, what series was it: 5500, 5600, 5700 or 5800?. Did you relace a triple crank set with a double, or were you using the triple front mech on a double crank? Have you adjusted the mech allowing for the 'trim' function if you have STI levers (brifters if you like that term instead) 
Last edited by Bob the Mech; 09-03-20 at 02:57 PM.
09-03-20, 02:41 PM
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In line adjusters are great for fine tuning cable tension. The limit screw limits the inner most and outer most travel of the front mech, it can't 'dial out' under-extension of the mech itself...I assume the gear cables don't run through cable stops on the down tube, or do you still use down tube shifters... A question about the 105 mech you replaced, what series was it: 5500, 5600, 5700 or 5800?. Have you adjusted the mech allowing for the 'trim' function if you have STI levers (brifters if you like that term instead)
- The mech seems to not want to go all the way over on the outer chain ring. I've adjusted the limit screws, but I can't find a happy medium where it doesn't fall off AND doesn't rub.
- The 105 was 5600 I believe (its in a box somewhere now so I'll have to dig it up, but it was definitely an older model)
- I'm not 100% sure on how to adjust for the trim function on these brifters.
- Brifters are Ultegra 6600 as well
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09-03-20, 03:00 PM
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Hey thanks for the quick reply -
- The mech seems to not want to go all the way over on the outer chain ring. I've adjusted the limit screws, but I can't find a happy medium where it doesn't fall off AND doesn't rub.
- The 105 was 5600 I believe (its in a box somewhere now so I'll have to dig it up, but it was definitely an older model)
- I'm not 100% sure on how to adjust for the trim function on these brifters.
- Brifters are Ultegra 6600 as well
- The mech seems to not want to go all the way over on the outer chain ring. I've adjusted the limit screws, but I can't find a happy medium where it doesn't fall off AND doesn't rub.
- The 105 was 5600 I believe (its in a box somewhere now so I'll have to dig it up, but it was definitely an older model)
- I'm not 100% sure on how to adjust for the trim function on these brifters.
- Brifters are Ultegra 6600 as well
But yes an inline gear cable adjuster is helpful. The trim function on the Ultegra 6600 STIs is on the front high gear only. New STI levers have trim on both high and low.
Last edited by Bob the Mech; 09-03-20 at 03:13 PM.
