Another bottom bracket question
#1
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Another bottom bracket question
I got a Campy bottom bracket for Super Record cranks. when I put it in the spindle wouldn't tighten, well as suspected its 115mm and I need a 110. Question is, are my cups fine? Can I just swap the spindle?
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#6
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Could it be possible I have a Nuovo record spindle for thick cups and I have Super Record thin cups.
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#9
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1) Spindle designed for Nuovo Record "thick" cups installed with Record "thin" cups.
2) Spindle designed for 68mm shell installed in 70mm shell.
3) Spindle designed for 68mm "thick" cups installed with "thin" cups in 70mm shell.
4) Wrong ball size. Most Campagnolo bottom brackets use 1/4" balls, but some have used 3/16" balls. 3/16" balls used in a cup/spindle combination intended for 1/4" balls may be too loose.
#10
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Some possibilities:
1) Spindle designed for Nuovo Record "thick" cups installed with Record "thin" cups.
2) Spindle designed for 68mm shell installed in 70mm shell.
3) Spindle designed for 68mm "thick" cups installed with "thin" cups in 70mm shell.
4) Wrong ball size. Most Campagnolo bottom brackets use 1/4" balls, but some have used 3/16" balls. 3/16" balls used in a cup/spindle combination intended for 1/4" balls may be too loose.
1) Spindle designed for Nuovo Record "thick" cups installed with Record "thin" cups.
2) Spindle designed for 68mm shell installed in 70mm shell.
3) Spindle designed for 68mm "thick" cups installed with "thin" cups in 70mm shell.
4) Wrong ball size. Most Campagnolo bottom brackets use 1/4" balls, but some have used 3/16" balls. 3/16" balls used in a cup/spindle combination intended for 1/4" balls may be too loose.
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#11
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All Pista cups were thin, as were the Record and Gran Sport cups.
You should be able to distinguish thick from thin cups visually. The thick cups have rifling in the hole for the spindle. The thin cups are smooth:
#14
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There should be markings on the spindle to indicate what cups and shell width it is designed to use. Perhaps this can help:
https://www.os2.dhs.org/~john/campy-BB-specs.pdf
https://www.os2.dhs.org/~john/campy-BB-specs.pdf
#15
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There should be markings on the spindle to indicate what cups and shell width it is designed to use. Perhaps this can help:
https://www.os2.dhs.org/~john/campy-BB-specs.pdf
https://www.os2.dhs.org/~john/campy-BB-specs.pdf
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#16
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I had a similar battle when building the Tommi, that link John provided should be mandatory reading, and printed out for everyone using these Campag bottom brackets. I saw that link referenced in a thread here and printed it out to have with me in my garage. Glad you got your answer sloar.
Bill
Bill
Last edited by qcpmsame; 05-17-17 at 05:33 AM.
#17
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I had a similar battle when building the Tommi, that link John provided should be mandatory reading, and printed out for everyone using these Campag bottom brackets. I saw that link referenced in a thread here and printed if out to have with me in my garage. Glad you got your answer sloar.
Bill
Bill
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#19
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From: Elwood Indiana
Bikes: they change so much I'm tired of updating this
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