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Old 03-29-07, 07:48 AM   #1
darsu
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A friction shifter problem

Hi,

I took my bike (Campagnolo friction gears, 2x7) from winter storage and ran into some misbehavior right on the first ride: whenever I shift to any of the three largest rear sprockets, the derailer shifts slowly back after I let go of the shift lever, eventually coming to rest on the fourth sprocket.

I hadn't adjusted anything when the bike wasn't being ridden. I have no experience of maintaining a friction shifter system, but it looks to me like the shifter cable had been under too much tension through the winter (ie. wrong gear) and bent into a position at the shifter, and now wants to return to that position if I shift past it. Does that happen? Is it plausible? What else could explain this?

(FWIW, I'm no luddite and have no particular reason to ride around with a friction setup as opposed to an indexed one -- I bought this bike with the sole intention of converting it to a fixed gear, but I've been enjoying it too much with gears to go ahead with the plan just yet. )
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Old 03-29-07, 07:54 AM   #2
astrodaimler
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It *could* be the cable has stretched. I see bent cables near the derailler and a good tightening will usually fix it. Also, since its friction levers, the tightening screw could be loose. If its campy (don't know what year yours is), there should be a loopy kind of metal. Designed so you can tighten it as your are riding.
HTH!
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Old 03-29-07, 07:57 AM   #3
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1) replace cable, they're cheap and it's easy to do.

2) take shifter off, wipe down the plastic friction plates and the levers to ensure there is no oil/grease on them allowing for the slippage. Just remember what order they went back on in.

3) give the bolt a little extra tightness to increase the friction needed to move the lever.

4) Campy levers have been known to slip like this with age. Though it sounds like you've got a severe case of it that the above steps should help or completely fix. Good luck.
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Old 03-29-07, 08:24 AM   #4
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Oh my, thanks!
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Old 03-29-07, 08:33 AM   #5
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Just give the D ring at the shifter lever pivot a little turn clockwise.
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Old 03-29-07, 08:37 AM   #6
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Quote:
Originally Posted by darsu
Oh my, thanks!
Might start off doine #1 and #3 in my list first, before taking the shifter off, just to see if that fixes it before driving in deeper.
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