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Old 11-29-06, 10:01 AM   #1
idcruiserman
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105 brifter not up shifting

My 105 9 speed brifter stopped up shifting yesterday on my commute home from work. Thankfully it was in a reasonable gear. Upon inspection last night the cable was somewhat loose, so I adjusted it at the brifter. I am able to get it to shift if I hold the large lever with my fingers and move the small lever with my thumb. Otherwise there is no resistance, and it just flops over.

Is there a broken spring in there? Should I bother trying to disassemble it?

New brifters are expensive, and I just bought a new 9 speed cassette, chain, and short cage rear derailleur (plus new wheelset). I wish I had known it was going to break, or I would have ordered 10 speed stuff and gotten brifters at the same time. Any reason to go with Ultegra over 105? Bike is a Cannondale cross that I'm currently using just for commuting.

thx, eric
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Old 11-29-06, 10:19 AM   #2
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Very occasionally this can be fixed with a drenching of the innards with solvent (eg WD40) and a followup lite lubing, but usually this is the BSOD for the brifter. You might check www.aebike.com A year ago they were selling R 9spd brifter (only) for $110 or so. No real difference between 105/Ultegra FWIW
10spd brifters are 50-100% more expensive than 9spd. Tiagra/Sora 9spd if findable would work also with almost unnoticeable difference in function. As to repair, if you have watch maker skills you might have a hope of reassembly, but there are NO spare parts available except by cannibalizing another brifter. Most that took them apart discovered there was no way to get it back together again. Campy brifters are bit more robust and are repairable, and spare parts are available.
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Old 11-29-06, 11:07 AM   #3
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Thanks for the tip. $125 for an Ultegra 9 speed brifter. $190 for a 105 pair. Tiagra is much cheaper.

edit: Performance has them on sale for $200 plus 10% off. can't turn that down. At this rate I'm going to have to sell my car to afford my bike habit.

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Old 11-29-06, 01:24 PM   #4
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I just bought a bike with 9 spd Tiagra set up and upgraded to 105 10 spd before I picked it up. Only cost me about $450 to move from 9 spd Tiagra level to 10 spd 105 level (excluding brakes) before I took delivery. I asked the LBS owner if there was any benefit (other than weight) to upgrade to Ultegra (brifter only) while I was at it. He said the only benefit would be a slight improvement in longevity of the brifter...the Ultegra should last a little longer that the 105. Performance differences would be minor unless you were trying to build up a high end race bike. I stayed with the 105 brifter.
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Old 11-29-06, 01:29 PM   #5
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Did they credit you the Tiagra cost? Did you upgrade the derailleurs, too?
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Old 11-29-06, 02:36 PM   #6
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Quote:
Originally Posted by idcruiserman
I am able to get it to shift if I hold the large lever with my fingers and move the small lever with my thumb.
This is not an isolated occurance. I have become very proficient at holding the outer lever with my index and middle finger while pushing the small lever with my ring finger keeping a my thumb hooked over the hood. I'm not as good at doing a similar movement from the drops. Been doing this for months while getting some coin to replace the shifter.

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Is there a broken spring in there?
Possibly a broken retainer right at the base of the whole works.

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Should I bother trying to disassemble it?
No, there are no parts available.
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Old 11-29-06, 02:43 PM   #7
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Might as well give the clean 'n lube a try before you toss it. I had an issue with upshifting a 105 9-speed and a little silicone spray lube fixed it up.

If you're cheap, you can get 9-speed STI 105 or Ultegra off Ebay.
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Old 11-29-06, 03:08 PM   #8
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I got a set of Ultegra 9 speed brifters for $125-$150 on ebay a little while back. Not sure exactly about the price... I had a Tiagra that stopped upshifting altogether, doesn't sound like the same thing, though.
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Old 11-29-06, 03:40 PM   #9
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I tried spraying some silicone in there last night, but no change in operation. I checked Ebay before ordering, and there are some 9 speed shifters on there, but several of the auctions are close to or higher than the Performance discounted price. Ordering now plus new parts, cables and housings, and warranty works for me. I'm too lazy to wait .

Thanks for the feedback. Maybe someone on Craig's list will want a set of 105 brifters for parts.
eric
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Old 11-29-06, 03:55 PM   #10
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Ordering now plus new parts, cables and housings, and warranty works for me.
New Shimano shifters come with cables and housings, no need to order separately.

Al
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Old 11-29-06, 05:29 PM   #11
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Quote:
Originally Posted by idcruiserman
I tried spraying some silicone in there last night, but no change in operation. I checked Ebay before ordering, and there are some 9 speed shifters on there, but several of the auctions are close to or higher than the Performance discounted price. Ordering now plus new parts, cables and housings, and warranty works for me. I'm too lazy to wait .

Thanks for the feedback. Maybe someone on Craig's list will want a set of 105 brifters for parts.
eric
Just so you'll know, the "spray with solvent/silicone" solution requires a complete and total washout drenching of the brifter -- enough spray that it's usually done with a good-sized towel wrapped around the part, and still produces a puddle on your garage floor. Just spraying "some" silicone won't do it. I've had success with this endeavor every time I've tried it, but it usually takes requires a fully pressurized (new) can of stuff to begin with, and takes about a third of the can.
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Old 11-29-06, 07:30 PM   #12
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Carb cleaner, find it at the auto parts store.
Spray it into the shifter, Let it sit for a bit, and whalla (sp?) shifts again. It is quite amazing how well this works. I usually keep a rag handy to wipe the outer parts of the lever after spraying. I don't usually spray quite as much as it sounds like GCRyder does.
If that doesn't work, then it is time to replace.
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Old 11-30-06, 08:42 AM   #13
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I rode my cross bike to work this morning and managed to upshift as needed using the finger/thumb technique . Not a long term solution, but will last me until Friday when my new brifters arrive. I'll see if I can revive the broken 105 shifter.
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Old 11-30-06, 09:53 AM   #14
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Quote:
Originally Posted by idcruiserman
My 105 9 speed brifter stopped up shifting yesterday on my commute home from work. Thankfully it was in a reasonable gear. Upon inspection last night the cable was somewhat loose, so I adjusted it at the brifter. I am able to get it to shift if I hold the large lever with my fingers and move the small lever with my thumb. Otherwise there is no resistance, and it just flops over.

Is there a broken spring in there? Should I bother trying to disassemble it?

New brifters are expensive, and I just bought a new 9 speed cassette, chain, and short cage rear derailleur (plus new wheelset). I wish I had known it was going to break, or I would have ordered 10 speed stuff and gotten brifters at the same time. Any reason to go with Ultegra over 105? Bike is a Cannondale cross that I'm currently using just for commuting.

thx, eric
Also check to make sure the small screw that threads into the upshift lever is still there.
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Old 11-30-06, 11:21 AM   #15
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Also check to make sure the small screw that threads into the upshift lever is still there.
+1
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Old 11-30-06, 11:37 AM   #16
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Where is it located?
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Old 11-30-06, 11:56 AM   #17
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Where is it located?
Its way up near the pivot. I believe you need to push the brake lever sideways to get access to it.
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Old 12-03-06, 03:30 AM   #18
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I replaced the brifters tonight along with cables, etc. Yes, the small screw is missing . I could have saved myself $200, but at least I have new parts

thx, eric
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