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What's up with my ultegra rear shifting?(19 posts)

What's up with my ultegra rear shifting?bludoggy
Feb 21, 2003 7:53 AM
Too often, when I'm shifting into an easier cog in back, my shift lever 'swings free'. i.e., it just moves through its arc without pulling any cable. when i then allow it to return to its neutral position and try again, it engages and will shift. This hasn't caused any catastrophic ugliness, but it can be a little annoying on long climbs or when I'm hammering and relying on the shift. Any others experience this or know how to remedy it?
Congrats, you've ben ShimanoizedRJF
Feb 21, 2003 8:14 AM
I had the same problem. It starts out missing a shift every once in a while. It gets worse and worse, and eventually dies. The solution? Buy a new one. Oh, but you can't generally buy just one shifter, so you need a new set. Hope your current set up is 9 speed, otherwise good luck finding an 8 speed shifter set. Maybe this is part of Shimano's plan?

Rear shifter lever failure is a common and chronic problem with at least Ultegra and 105. If you search the archives, you will find lots of groaning about it. Reason enough for me to get Campy on my next bike.

It beats the hell out of me why the geniuses at Shimano cannot figure out a way to make a rear shifter lever that lasts.
re: What's up with my ultegra rear shifting?JS Haiku Shop
Feb 21, 2003 8:23 AM
Covered for two years.MR_GRUMPY
Feb 21, 2003 9:00 AM
Ultegra is covered for two years. If your shifter is over two years old, your shop should be able to get the right shifter from Quality. If they say that they can't, it's time to get a new shop.
Are you guys really saying its toasted?bludoggy
Feb 21, 2003 9:27 AM
I have had this bike for only nine months and only have a couple thousand miles on it. In addition, my girlfriends bike has the exact same thing going on. Surely there is some simple remedy or adjustment or something?
Like a bic pen when it stops writing!nmthe bull
Feb 21, 2003 9:46 AM
Are you guys really saying its toasted?JS Haiku Shop
Feb 21, 2003 9:58 AM
9 months? have you had the cables adjusted or replaced yet?
Yeah, the stuff is on its third framebludoggy
Feb 21, 2003 10:30 AM
Long story with trek OCLV frames, but nine months and three frames later this shifting is giving me fits. Once it shifts, its fine, no skipping, perfect, crisp indexing... It just fails to engage sometimes..
lemmie rephrase the question:JS Haiku Shop
Feb 21, 2003 10:52 AM
how many miles on the rear derailleur cable?
lemmie rephrase the question:bludoggy
Feb 21, 2003 1:30 PM
sorry, I should have seen the intent of your previous post...duh. no more than 500 miles -- a little less than two months. The problem was there before and after the last cable change.
Have you had your cables/derailluers serviced or adjusted? nmdavet
Feb 21, 2003 10:53 AM
Are you guys really saying its toasted?MR_GRUMPY
Feb 21, 2003 12:59 PM
Take it back to where you bought it. They should replace it for free if it is shot or fix it if it's minor.
Before you throw anything away...mwood
Feb 21, 2003 11:39 AM
try liberally spraying the internals with WD40 (solvent). Let stand and then give a shot of lube.
The grease inside older Shimano shifters can become hard with time and needs a periodic wake up call.
WD-40 and some prolink worked wondersbludoggy
Feb 23, 2003 6:48 PM
totally doused the guts of the shifter with wd40 and lubed all the cables with some prolink. Problem fixed. Thanks mwood for saving me countless dollars and hours. Where do I send the check?
not to open a can of worms... well it's Friday, so I'll open it anyhow :)lonefrontranger
Feb 21, 2003 2:28 PM
This sort of thing happens to be why I switched back to Campag stuff once I had the dough.

I realize that if it's busted it's under warranty, and the poster below is right on track by saying you should give it a good flushing out with lube, 'cos IMO dirt and dried lube in the ratchet mechs is the single biggest culprit of STI non-functionality.

However, our Ergo stuff on all our bikes works as well as the day it was installed, and my SO's cables are 3 years old. We've got 5 Ergo 10 equipped bikes all with lots of wear and tear on 'em (like 5000 miles + per year racing / training / commuting in all kinds of weather) and even the Centaur (3rd rung) stuff on my 'cross bike is taking the mud and sand well.
Feb 21, 2003 3:06 PM
just kidding of course...
I will give the wd40 treatment a try and see what happens. I never have had anything like this happen on my xtr stuff on my mtn bike which is ridden year round in the Northwest muck. We'll see... Thanks for all the input everyone.
re: What's up with my ultegra rear shifting?techie470
Feb 22, 2003 12:31 PM
Happens to me to.
1000 miles on the bike with orginal cables. I tried washing the shifter out with a shot of WD40, not much change. Cleaned/lubed the cables and rd, nada. When this happens the shifter arm just kinda swings like there is nothing attached to it, on the next push it shifts like it should. Only happens sometimes but I'm afraid of what could happen. I would love to hear a fix for this or it's time for a trip back to the dealer.

Potential solution for all.killermustard
Feb 25, 2003 12:43 AM
I recently installed new cables and STI shifters on an old frame. It worked fine for the first few hundred miles and then started having the problems you indicated. After trying various solutions (adjustments, lubes, etc.), I finally just tore everything off the bike.

I discovered that the cable housing had been sucked into the STI levers because I neglected to install the ferules. So what had been happening was that whenever I pushed the outside RD lever to shift into an easier gear, the housing would get sucked in just enough to prevent the shift from fully engaging. Sometimes this would happen, sometimes it wouldn't.

After I put in ferules, the shifting worked flawlessly.
ferrules certainly have a purpose....wd40 won't hurt eitherbludoggy
Feb 25, 2003 6:41 AM
I can see how that would cause some problems... It turns out, however, that a healthy shot of wd40 into the shifter followed by some prolink in the shifter and then on the cables really did the trick. I have ridden a couple hundred miles since this treatment without a single mis-fire.