Derailleru shifts perfectly in all but one gear
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Derailleru shifts perfectly in all but one gear
Hi all. I mainly frequent the roadie forum, but this problem has got me stumped. On my 2001 Cannondale R3000Si (less than 750 miles), the rear derailleur skips 4th gear. It shifts quite perfectly to the others, but 4th from the largest/easiest gear, it clanks, strips and bounces between 4th and 5th gears. I've screwed with the barrel adjuster and cable tension to no end, and the darn thing just won't fix. I even replaced the cassette. Still the same problem. I wonder if maybe the dropout is bent, but everything else works perfectly.
It's 9 speed Dura Ace, BTW.
Thanks in advance for any help!!
Cole
It's 9 speed Dura Ace, BTW.
Thanks in advance for any help!!
Cole
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Originally Posted by fujiacerider
Hi all. I mainly frequent the roadie forum, but this problem has got me stumped. On my 2001 Cannondale R3000Si (less than 750 miles), the rear derailleur skips 4th gear. It shifts quite perfectly to the others, but 4th from the largest/easiest gear, it clanks, strips and bounces between 4th and 5th gears. I've screwed with the barrel adjuster and cable tension to no end, and the darn thing just won't fix. I even replaced the cassette. Still the same problem. I wonder if maybe the dropout is bent, but everything else works perfectly.
It's 9 speed Dura Ace, BTW.
Thanks in advance for any help!!
Cole
It's 9 speed Dura Ace, BTW.
Thanks in advance for any help!!
Cole
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if all else is normal, the limit screws aren't adjusted correctly. refer to the park tools website and follow the instructions to the letter...
sd
sd
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Originally Posted by shaq-d
if all else is normal, the limit screws aren't adjusted correctly.
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I would look into the cables/housings first, than maybe derraileur needs some cleaning/lubrication, or the shifter itself either needs cleaning/lube or either derraileur or the shifter maybe damaged.
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Originally Posted by shaq-d
if all else is normal, the limit screws aren't adjusted correctly. refer to the park tools website and follow the instructions to the letter...
sd
sd
fujiacerider, I had a similar problem with my Ultegra setup. I'd go for a ride and the chain would jump gear on me at about the same place yours does. I put it on the stand when I got home home and trimmed it with the barrel adjuster until it shifted fine. Would take it out the next day and had the same problem. The problem I had making adjustments on the stand was that the frame flexes as you ride/pedal. Although I was able to "fix" on the stand, it was different when I took it out on the road.
What I had to do was make adjustments to the rear der. barrel while I was riding. I simply reached down at the rear barrel adjuster and turned it left or right, while I was riding, until the chain stopped jumping. Once I did this, it never jumped again.
***DISCLAIMER***: I don't know how your bike handling skill is, so I'll leave this to your discretion to try this. Please, only do this if you if you're a good bike handler.
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Originally Posted by fujiacerider
Hi all. I mainly frequent the roadie forum, but this problem has got me stumped. On my 2001 Cannondale R3000Si (less than 750 miles), the rear derailleur skips 4th gear. It shifts quite perfectly to the others, but 4th from the largest/easiest gear, it clanks, strips and bounces between 4th and 5th gears. I've screwed with the barrel adjuster and cable tension to no end, and the darn thing just won't fix. I even replaced the cassette. Still the same problem. I wonder if maybe the dropout is bent, but everything else works perfectly.
It's 9 speed Dura Ace, BTW.
Thanks in advance for any help!!
Cole
It's 9 speed Dura Ace, BTW.
Thanks in advance for any help!!
Cole
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Thanks much for the replies all.
EagleEye, I'd read elsewhere about that frame flex, but I just couldn't bring myself to belive that my CAAD5 was flexing under the pathetic amount of watts I stick to it. On top of that, it would shift gears even when I had it in the "stand" (hung by some shoelaces from the ceiling).
As it turns out, I had clamped the rear derailleur cable on the OUTSIDE of the clamp bolt, rather than the inside. I switched it around, and sure enough, it shifted perfectly. Did some adjusting, took it out for a ride today, and sure enough, problem-o sloved.
Man, do I feel like an idiot!
Thanks again,
Cole
EagleEye, I'd read elsewhere about that frame flex, but I just couldn't bring myself to belive that my CAAD5 was flexing under the pathetic amount of watts I stick to it. On top of that, it would shift gears even when I had it in the "stand" (hung by some shoelaces from the ceiling).
As it turns out, I had clamped the rear derailleur cable on the OUTSIDE of the clamp bolt, rather than the inside. I switched it around, and sure enough, it shifted perfectly. Did some adjusting, took it out for a ride today, and sure enough, problem-o sloved.
Man, do I feel like an idiot!
Thanks again,
Cole
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Originally Posted by fujiacerider
---snip---
As it turns out, I had clamped the rear derailleur cable on the OUTSIDE of the clamp bolt, rather than the inside. I switched it around, and sure enough, it shifted perfectly. Did some adjusting, took it out for a ride today, and sure enough, problem-o sloved.
Man, do I feel like an idiot!
Thanks again,
Cole
As it turns out, I had clamped the rear derailleur cable on the OUTSIDE of the clamp bolt, rather than the inside. I switched it around, and sure enough, it shifted perfectly. Did some adjusting, took it out for a ride today, and sure enough, problem-o sloved.
Man, do I feel like an idiot!
Thanks again,
Cole