What do you see here?
10-19-20, 10:25 AM
#26
Hoards Thumbshifters
Join Date: Jul 2010
Location: Signal Mountain, TN
Posts: 1,157
Bikes: '23 Black Mtn MC, '87 Bruce Gordon Chinook, '08 Jamis Aurora, '86 Trek 560, '97 Mongoose Rockadile, & '91 Trek 750
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Thank you all for you observations and responses.
Yes, I was also thinking the jockey cage plates were bent. When I noticed that most here agreed, I decided to take the derailleur apart to confirm. Yup. Both bent; the rear plate was the worse of the two.
One washer was missing, but l had a spare. When I put that spare in to see what things looked like the bend was obvious. All fixed now, plus I learned how to dismantle/rebuild a CDA RD - which is good practical knowledge to pass along to my buddy when it comes time for him to put the correct set of jockey wheels in there.
DD
Yes, I was also thinking the jockey cage plates were bent. When I noticed that most here agreed, I decided to take the derailleur apart to confirm. Yup. Both bent; the rear plate was the worse of the two.
One washer was missing, but l had a spare. When I put that spare in to see what things looked like the bend was obvious. All fixed now, plus I learned how to dismantle/rebuild a CDA RD - which is good practical knowledge to pass along to my buddy when it comes time for him to put the correct set of jockey wheels in there.
DD
10-20-20, 08:52 PM
#27
Junior Member
I’ll add that those Bullseye “speed” pulleys are likely considerably narrower than the original Cd’A pulleys, which could throw things out of whack if spaced unevenly. I overhauled my NR derailleur recently and replaced my well-worn Bullseyes with NOS Campagnolo pulleys. The Bullseyes measured 6mm wide; the NR pulleys 10.5mm. Not sure how wide Cd’A pulleys are, but I’ll bet they’re wider than Bullseyes.
Last edited by ManekiNico; 10-20-20 at 08:54 PM. Reason: Addition
