Question about Shimano 105 Triple Braze On Front Derailleur

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Shimano 105 front shifter problem

My compact front shifter will shift the chain to the big ring, but will not hold it there. I assume the catch is broken and it is not an adjustment...

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There will be adjustment, check the front derailleur. There is a wire which is held by a pinch bolt, undo the bolt pull the wire out a little, tighten up and check the gears again. Do this until it works.

Hope this helps

Posted on Jul 05, 2010


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I have a loose Shimano 105 8500 shifter blade. How do I tighten them?

I'm not sure what you mean by "shifter blade", but I might assume it might be the cage of the derailleur. On the front derailleur there is either a rivet or a small bolt at the trailing edge that holds the two halves together, if it is a rivet then it is not repairable and the derailleur will need to be replaced, if it is the bolt, it is probably a 8mm socket head, tighten to the right. If it keeps loosening up from road vibration then the threads could be stripped (replace the derailleur), or else put a drop of Blue Loctite on the threads to prevent it from backing out. If you are talking about the rear derailleur cage that holds the two pulleys in place, these have two Allen type bolts, probably 3mm or 4mm Allen wrench size. The bolt slides through a small bushing inside the plastic pulley wheel, the bushing is slightly wider then the pulley to prevent over tightening the cage plates against the pulley, thus preventing the pulley from spinning freely, use the Blue Loctite if the bolts keep coming loose. Blue Loctite (also known as 242 Loctite I believe) is the removable type and provides some extra friction to prevent bolts from backing out. Now if by "shifter blade" you are referring to the shift/brake levers, these have a small amount of "play" in them from the factory, a little bit of wiggle. They basically are not serviceable. Try adjusting the derailleur cable to see if that removes excess play. If they still have an excessive amount of play in them, then you will need to replace the shift/brake levers as a unit. If you do this, make sure you get the shifter that is designed for the number of cogs you have in your gear cluster and front chain rings. I would recommend also replacing your chain and rear cluster at the same time so that all part wear evenly for optimal shifting performance.

Feb 15, 2018 | Shimano Cycling

2 Answers

The front derailer on my sram red compact just wont change quick!

Which brand of shifters are you using? A SRAM derailleur won't work with Shimano shifters and vice-versa.

So - first; if you are using SRAM shifters with the Red derailleur - then changing to Shimano will not solve your issue but only make it worse.

If however you have Shimano shifters - then this is a good solution.
The Red derailleur should not shift that poorly with SRAM shifters. It is not the best - but it's not bad. If I had the bike in a repair stand I would be looking carefully at the following after affirming that the shifting system was indeed all SRAM:

  • Derailleur cage height relative to the large chanring - should be a maximum of 2 mm
  • Derailleur cage should be aligned as close to parallel to the rings as possible
  • Derailleur upper and lower limit screws should be adjusted within spec and in order to allow the derailleur to travel the correct amount for ideal shifting
  • Derailleur cable tension should be correct.

Hope this helps... Let me know if you need more.

Oct 28, 2012 | Sram Red

1 Answer

Triple to double crankset, problem with left shifter-shimano ultegra

Derailleurs have a return spring in them that will always return them to the smaller cog (whether it is front or rear). The derailleur cable resists this spring tension. If your front der. is on the large ring and will not shift to a smaller ring then it could be a couple things. First, too much cable tension preventing the spring from returning the derailleur to a smaller cog. Second, you low limit screw is set too far in so the derailleur cannot travel back to a lower gear. This will be evident if you shift to a smaller cog, the derailleur does not move and the cable becomes slack. Third, something else is preventing the derailleur from moving, perhaps the derailleur was moved when installing the new crankset and it is getting hung up on a tooth of the large chainring, there could be some foreign matter lodged in the derailleur spring preventing it from operating, the spring could have broken so there is no longer enough tension to move the derailleur back to it's "home" position. Good luck.

Jan 01, 2018 | Shimano Ultegra Triple Front Derailleur Fd...

1 Answer

I have a set of shimano R700 shifters that came on my wifes bike. (Jamis Xenith Comp with a stock mix of Ultegra/105 & FSA gossamer compact cranks) I have built several road/Mtn bikes & never...

The problem is not with the derailleur tension - that is preset. If the levers worked properly on your wife's bike you may have the cable set just a bit too tight, so that there is too much tension against the outer limit stop when you shift to the large chainwheel. Try backing off the high limit screw. If you can then shift down OK you need to loosen the cable clamp and let the cable slip very slightly looser (and then restore the proper outer limit adjustment). If there's still a problem then the only culprit is the lever.

I’m happy to help further over the phone at

Mar 18, 2017 | Shimano Cycling

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)
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

I have shimano rd6500 rear derailleurs. when chain is on small chain-ring and smaller rear sprockets the derailleur cage is rubbing against the chain.How do i tension chain to hold cage away from chain,...

If you learn to shift correctly this won't happen..

Google bicycle shifting technique, for example:

You should NEVER run cross-chained (big-big or small-small). The drive train performs best when the chainline is as close to straight as possible. Excess sideways stress on the chain will wear it out prematurely and increase its normal efficiency.

To demonstrate this for yourself, put the bike in the same combination of gears you're having a problem with. Get behind the bike and look staright along the top of the chain. As you can see the line of the chain is a mild zig-zag where it is parallel to the bike at each gear but needs to angle across the drivetrain in between. On some bikes the chain might even come in contact with the next larger chainring when used this way.

If you can shift to the big-big combination without snapping the rear derailleur off, you're lucky. The big-big combo uses up all available chain length and the rear derailleur will be pulled toward the front of the bike, sometimes so far that it is in danger of being snapped off.


As you can see, the rear derailleur is not long enough to **** up all the slack this gear combination creates. There are other combinations that would yield the equivalent gear ratio without either stressing the drivetrain or dropping the chain.

The basics of shifting are these:
1) The big ring and right side of the cassette in back are for speed.
2) The small ring and the left side of the cassette are for high torque, lower speed

Feb 24, 2010 | Shimano 105 Triple Braze On Front...

1 Answer

My left shifter (Shimano 105) is ''popping'' not clicking when I shift to the small chain ring. Any ideas?

Front changers are crude little things and do not sound like their cousins at the back. However, if the changer is successfully moving the chain from one 'ring to the next, the "pop" may be from the cable adjusted a hair tight. Shift onto the big 'ring, find the adjuster barrel in the cable run, and back the tension down 1/4 turn. Did the front changer move toward the bike? No? Now your pop should be milder. You might be able to take out another 1/4, but if the changer moves in when you do, you might be messing up the shifting, too.
There's some voodoo involved in front changers, still - bike mechanics have it and mechanically-inclined folks can get it.

Dec 04, 2009 | Shimano Cycling

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

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

3 Answers

Shimano 105. Front derailleur won't shift down

It sounds like you could have two different problems. Your derailleur has become contaminated or your shifter may need to be lubed. Either way, the likely solution is the same. The best solution to get the derailleur operating again is to spray it with GT-85 or PB blaster and manually move in back and furth until it is working again. The same goes for the 105 shifter, spray GT-85 inside the shifter by compressing the brake lever and spraying towards the head of the shift cable. This will solve a non-functioning shifter many times.

The only other problem that fits is the limit screws could be wrong or the deraileur is in the wrong position. This would not be the case unless someone adjusted your derailleur before the ride you started have that problem. Or if the derailleur has moved. Both of which require the derailleur to be fully readjusted.

Hope this helps. Thank you

Jul 15, 2009 | Shimano 105 Triple Braze On Front...

2 Answers

On my bike with shimano ultegra shifters and 105 front deraileur, I can't shift onto the big chainring. The deraileur is not at the stop, but I can't move it any farther. How do I fix that.

Try this first:
Shift into the little ring and release the cable. Pull it tight (with pliers) and re-tighten the cable. It should shift now. If it doesn't, the solution is a little time consuming, so i apologize in advance.
First, flip your bike onto the bars and saddle. Now shift into the small chainring and your lowest cassette cog (the largest in number of teeth). Release the cable from the front derailleur and set the adjustment knob for the front derailleur to its center point. You should find it on your down tube. Now adjust the "L" setting on the derailleur while turning the crank so that its stop sets it in a position where it just skims the chain but does not touch it. Now pull the cable taut and re-clamp the cable. Shift into the middle ring and shift the rear derailleur to its highest and lowest gears, making sure the chain does not rub the front derailleur. If it does rub (it will be in either the lowest or highest cog on the cassette), adjust the front derailleur by way of the adjustment knob to clear the rub. Then shift into the big ring and you should have no problem. Set the "H" stop if necessary.

Jun 23, 2009 | Shimano 105 Triple Braze On Front...

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