Bicycle Mechanics - campy rear derailleur adjustment trouble
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
1st time installer of rear derailleur-2005 campy veloce (medium size) with 12-25 cassette. Having trouble with adjustment, keeps skipping cog 16 & 21. According to campy directions, I make appropriate adjustment and then it doesn't skip cog 16 or 21 but won't shift onto cog 25. Any input would be much appreciated.
04-28-06, 09:34 AM
04-28-06, 08:32 PM
Start the adjustment procedure from scratch. Disconnect the shift cable and set the outer derailleur travel stop so the chain will shift cleanly to the smallest cog with out spilling the chain outside. Shift the derailleur by hand and set the inner travel stop until it will shift to the 25 cleanly but doesn't throw the chain into the spokes.
Then shift the brifter to the "most relaxed" position (i.e. push the thumb lever multiple times until it stops.). Connect the cable and pull all the slack out. Then adjust the adjustment thimble until the smalles to second cog shift is clean both ways. Then it should shift the entire cassette properly.
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.