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-   -   Bottom Bracket Issue (https://www.bikeforums.net/classic-vintage/1069021-bottom-bracket-issue.html)

RIDER987 06-20-16 01:31 AM

Bottom Bracket Issue
 
Hi everyone my 80's road bikes bottom bracket has developed some sort of issue.

It has developed up/down movement (not inward/outward).

I immediately thought something was loose or the bearings were shot.

I replaced the bearings with new ones BUT the issue is still there!

Everything is tighten properly so I'm not sure what is wrong.

It rode fine until this issue escalated in less than 50 miles.

Any ideas?

eschlwc 06-20-16 02:38 AM

are you saying the spindle has vertical movement of your old cup and cone bottom bracket?

and the fixed cup is tight?

and the adjustable cup is properly adjusted?

and the lock ring is secured tightly?

and the spindle has inappropriate movement without the cranks mounted?

or does the problem only occur after riding the bike with the cranks mounted?

RIDER987 06-20-16 05:24 AM


Originally Posted by eschlwc (Post 18857553)
are you saying the spindle has vertical movement of your old cup and cone bottom bracket?

and the fixed cup is tight?

and the adjustable cup is properly adjusted?

and the lock ring is secured tightly?

and the spindle has inappropriate movement without the cranks mounted?

or does the problem only occur after riding the bike with the cranks mounted?

Thanks for the checklist. I had made a rookie mistake.

The adjustable cup needed to be adjusted properly. At least I've learnt something new.

plonz 06-20-16 08:45 AM


Originally Posted by eschlwc (Post 18857553)
are you saying the spindle has vertical movement of your old cup and cone bottom bracket?

and the fixed cup is tight?

and the adjustable cup is properly adjusted?

and the lock ring is secured tightly?

and the spindle has inappropriate movement without the cranks mounted?

or does the problem only occur after riding the bike with the cranks mounted?

We all saw what you did there... ;)

eschlwc 06-20-16 02:56 PM


Originally Posted by plonz (Post 18857992)
We all saw what you did there... ;)

umm ...

well, he seemed to figure it out, so all is well. B^)


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