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Campy Front Derailleur Problems (Newbie Question)(8 posts)

Campy Front Derailleur Problems (Newbie Question)jcheyney
Apr 24, 2002 8:23 AM
I have a Univega with 9sp Campy Mirage components. I keep having problems with the front derailleur shifting. I have had it adjusted twice at the shop I bought it at but it seems like I can either have it shift up well but ocassionally drop the chain off the big ring OR I can adjust it so that it doesn't drop off but it is difficult to shift up. I'll admit I am new to road biking and tend to mash the shifter pretty hard. Does anyone have any ideas on adjustment or technique that might help?
re: Campy Front Derailleur Problems (Newbie Question)PaulCL
Apr 24, 2002 10:09 AM
I have a record setup. It sometimes takes me two shifts to move the chain up to the big ring.

What is difficult?? Not going onto the bigring? taking an extra push/shift to get it up there?? Personally, I would rather it take an extra upshift versus having my chain drop off. These mechanisms are not specifically precise, there is some technique involved in shifting. Just my $.02 Paul
re: Campy Front Derailleur Problems (Newbie Question)jcheyney
Apr 24, 2002 5:36 PM
That is part of it. I think what happens sometimes is that the first shift isn't quite far enough but the second shift is too far. You are right, some of it is technique. I just want to make sure I'm not missing anything.
re: Campy Front Derailleur Problems (Newbie Question)johnjohn
Apr 24, 2002 10:15 AM
I bought a 2000 Univega Modo Vivere on sale about a year ago with the Mirage components. Lost the chain shifting upward twice at speed, had it adjusted to no avail, and ultimately decided to upgrade to a Daytona front and rear derailleur. Haven't had a single problem since. Very cost effective IMHO.
re: 3 little adjustmentsdzrider
Apr 24, 2002 10:35 AM
1 - limit screws should be set as tightly as possible without causing the chain to rub if you're standing and hammering.

2. the outer cage should barely clear the big ring when shifting from the small ring to the big rig. Test this by moving the derailleur with your hand and watching closely.

2. the cages should run parallel to the chain rings.
one more adjustmentKerry
Apr 24, 2002 4:56 PM
make sure that the cage is close (vertically) to the big ring. Adjust the derailleur so that there is 1 mm clearance between the bottom of the outer cage plate and the teeth of the big chain ring.
re: Campy Front Derailleur Problems (Newbie Question)curlybike
Apr 24, 2002 7:06 PM
Make sure the cable is not loose when the chain is on the little ring.
re: Campy Front Derailleur Problems (Newbie Question)flybyvine
Apr 24, 2002 8:56 PM
More cable tension will solve the "two shift" problem.

Then bring the outer limit screw in until the chain stops dropping (and then some.

Cheers