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Ultegra 6703 skipping shifts:

Ultegra skipping shifts: Identical problem, but affects both of my 6703 shifters, As Kris_bebbing reports, they both skip moving to smaller ring or sprocket. Intermittent, sometimes takes several strokes to re-engage the ratchet. They are brand new, so trying to get infor from dealer.

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Yes, I'm having the same issue with my new ultegra shifters.....the guy who built my bike (it's a custom) showed me that it did it only when I pulled the shifter a little toward the back of the bike but did not happen when I pushed directly medially. he said there was no adjustment for it. seems like a design flaw to me. any other ideas out there? George

Posted on Dec 03, 2009

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You might try contacting these guys if you haven't already thought of it:http://www.parktool.com/contactus.asp Hope this helps.

Posted on Nov 26, 2009

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My shimano ultegra left shifter is super stiff/hard to push in; what is going on?


Try flushing out the shifter(s) with WD-40, use plenty. The next step will be replacing the shift cables and cable housings.
  • Take the bicycle in an area free of cars and obstacles, such as an open parking lot. Concentration is required when learning to use Ultegra shifters or any other type of bicycle shifter.
  • 2 Mount the bicycle and rest both hands on the proper Ultegra hand control. The left-hand control operates the front derailleur. The right-hand control operates the rear derailleur.
  • 3 Start pedaling, smoothly and evenly. While pedaling is crucial to propelling the bicycle forward, it is also necessary when shifting the derailleur. Pedaling forces the chain to rotate. The chain must rotate before it can transfer to another gear.
  • 4 Push the outside right Shimano Ultegra lever in toward the bicycle. The rear derailleur will shift the chain to a smaller rear gear.
  • 5 Push the inside right Shimano Ultegra lever in toward the bicycle. The rear derailleur will shift the chain to a larger rear gear.
Rear Ultegra Derailleur Control
  • 1 Push the outside left Shimano Ultegra lever in toward the bicycle. The front derailleur will shift the chain to larger front gear.
  • 2 Push the inside left Shimano Ultegra lever in toward the bicycle. The front derailleur will shift the chain to a smaller front gear.
  • 3 Use the front and rear Ultregra hand controls interchangeably. For small changes in gearing, using the rear control. For larger changes, choose the front control. A smaller gear causes the bicycle to travel a shorter distance per pedal stroke but also requires less energy to use. A larger gear requires greater effort but in turn causes the bicycle to travel farther per pedal stroke.

Oct 25, 2011 | Cycling

1 Answer

I am using a new shimano 6603 SL braze on derailluer with a fairly new, but in good shape shimano 6603-G crankset, but an older 6510 triple shifter, all with a 9 speed chain. Shifting onto the middle and...


It is hard to tell via the Internet. I suggest that you take it to a bike shop. They will get it shifting smooth, and, if not tell you what is wrong.

Jul 22, 2011 | Shimano Ultegra ST-6603

1 Answer

Hi Everyone! I have a Shimano 5603 Hollowtech 2 triple chainring.......(10 Speed) I want to add a Utlegra 6600 front derailleur and Ultegra 6600 rear derailleur. Also 10 speed cassette, Ultegra...


No -

If you are going to use the front triple crankset, then you need to use the 6603 components. These are for Triple set-ups.

If you intend to keep your bike a triple, then everything in the drivetrain must be the triple designation, hence the XX03.

If you want to change the crankset to a compact, then you can use the 6600 (double) equipment, but you will need to change the left (front shifter) to a double as well. The compact crankset, will give you virtually the same range as the triple and be much lighter and shift better.

The cassette: You can use any 10 spd cassette from Shimano or SRAM as long as the rear cog is no larger than 27. if you want to use a larger cog like a 28, then you will have to use the 6700 group, assuming yoiu want to stay with shimano ultegra.

Final Note: Since you are chainging everything, you may want to consider the SRAM Apex group, this gives you more gear ratio than the Ultegra, is slightly less expensive and around the same weight. Great alternative to Triple bikes.

Parts you will need to convert:
Rear Derailleur
Front Derailleur (if changing to compact double or Apex)
Chain
Shifter set (if Apex)
Crankset (if Apex or compact shimano)
Bottom Bracket (if Apex)

The biggest thing is that Shifters and rear derailleur must be from the same company (shimano, SRAM, etc.) after that just make sure that yoiu use 10spd with 10spd, 9 with 9, and so on. Everything else can mix and match.

Dec 18, 2010 | Shimano Ultegra Triple Front Derailleur Fd...

1 Answer

With Shimano 6603 Group can you use Shimano 5703 shifters, or even triple Tiagra shifters?? Thanks for the reply


The answer is yes and no.

The 5703 shifters will work both derailleurs and match the 6603 group as they are both 10spd.

The Tiagra will not work because it is 9spd, it will functionally shift the derailluer but you will not be able to line up the gearing.

The rear shifter needs to match the number of gears on the back (cassette) in the case of the 6603 group that is 10spd, so you can use any 10spd rear shifter from shimano. The Tiagra is either an 8spd or 9spd depending on the model and will not work with the cassette. You can use a 6603 rear derailleur with a Tiagra group, as long as the shifter and cassette are both the same.

Dec 14, 2010 | Shimano Ultegra Triple Front Derailleur Fd...

1 Answer

I would like to replace the shifter cables on my ultegra flight deck shifters how do i go about this


You will need to purchase new cables obviously, but I would strongly advise that you purchase them as part of a set that includes the outer housing. That way you'll be sure your shifting is smooth and trouble free. You will need to loosen the pinch bolts at both derailleurs and pull the cable loose. Then you can pull them free at the shifter....I'd recommend going to the shimano website or sheldon brown to see illustrations on exactly how to do this. You then replace the cable housings (don't forget to inject some lube into the them) and then rethread the cable. You will also need a cable cutting tool (don't use anything else as the cables will fray) and some cable caps. Tighten the pinch bolt at the derailleurs, adjust the shifting and your done.

May 14, 2010 | Cycling

1 Answer

My front derailleur won't shift into the lowest


check the cable first ,take out the cable in the housing to see if the cable is good,then put it back ,then check the adjuster screw (there is a 2 screw in the front derailleur adjust it.

Feb 11, 2010 | Shimano Ultegra Triple Front Derailleur Fd...

1 Answer

Left bar end shifter does not hold on big chain wheel. The shifter turns down during riding.


You may just have too much cable stretch. Try this out: shift to the small chain ring and release the shifter cable at the derailleur. Pull the cable really tight and reattach it.

i hope this helps
-matthew

Oct 28, 2009 | Shimano Ultegra 8-speed Bar End Shift...

2 Answers

My LH ultegra flight deck does not shift.


Try disconnecting the cable as you would if you were replacing it. Check the cable for wear (frayed wires in the cable). While you have the cable out try shifting it to see if it now works. Check http://www.bikeforums.net/archive/index.php/t-194308.html for an article which may help.

Jun 24, 2009 | Mountain Bike Bmx Fit Gt Haro Chrome...

1 Answer

Ultegra Flight Deck shifter problem


My guess is the shift cable has slipped, only allowing you the top end of the rachet positions. Drop the shifter to the very lowest cog, make sure the cable is tight, and adjust the tension at the derailleur so that on the first single click it climbs one gear, and isn't noisy there. More tension 9 winding the barel out ) causes it to rise, less, to drop down. It should then hopefully select all the gears, unless the upper stop, the L screw is set too low. This screw stops the derailleur hitting the spokes and going past 1st gear. That shouldn't ever change though.

Jun 01, 2009 | Mountain Bike Bmx Fit Gt Haro Chrome...

1 Answer

Ultegra shifter problem


yes it can be fix.maybe the small spring is dislocate

Mar 18, 2009 | Shimano Cycling

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