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  1. #1
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    Need help! Compatibilty. Campagnolo bb chorus and vintage record crank

    Hi, i just bought a vintage Record Crankset to use in my Olmo bike but I'm not sure if it is compatible with bb that i have.
    I have a vintage record crankset and a chorus bottom bracket 102mm italy thread.
    So, when i tried to install these parts i noticed that the right crank arm is flat against the side of the bottom bracket (with no gap to free rotation). But, if i install the bb inverted it seems to be a regular fit. I mean, with the bb left side on the right side of the bike. The axle right side of the bb is biggest or looks like.
    Anyone could explain me what happens? It's really incompatible or should I use the bottom bracket "inverted" to fit it normally? Or What?

    Heres a picture to try to explain easier.
    bb_campagnolo_english.jpg
    Last edited by emerson_eller; 07-25-13 at 04:23 AM.

  2. #2
    cheese connoisseur Mumonkan's Avatar
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    need a record bb for a record crank

    a quick google leads me to believe you need a spindle length in the 112-115mm range
    ride bikes, eat food. the circle of life.

  3. #3
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    Probably I will not get a good chainline with a spindle length in the 112mm or biggest.

  4. #4
    Senior Member seau grateau's Avatar
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    need a record bb for a record crank

    a quick google leads me to believe you need a spindle length in the 112-115mm range
    Quote Originally Posted by adriano View Post
    thanckx.
    Quote Originally Posted by Nagrom_ View Post
    "I made love to your mother dozens of times last week, and she doesnt know what a worn chain ring looks like"

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    Old fart JohnDThompson's Avatar
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    I can't quite tell what "Record" arm you have (Campy has had a number of designs called "Record" over the years), but it appears to be the classic 1960s-1980s version (which itself had a significant change in 1977 to comply with CPSC regulations). In any case, these arms expect to be mounted on an asymmetrical spindle, but the Chorus bottom bracket uses a symmetrical spindle. More information would be helpful. Are there any markings on the back of the arm?

  6. #6
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    Do not need a Record BB - space the fixed cup out 2.5mm (or even just 2mm) and this setup will work fine. Spindle selection is trial and error for your frame for single speed, 115.5mm would be what you'd use for a double. I would try the 102mm spindle and FC spacers first

    EDIT: Just to make this more clear, by spacing one side of the bearing (the fixed cup) out 2.5mm, you can tighten in the adjustable cup an additional 2.5mm, giving you 5mm of total offset - appropriate for a Record crank. But in reality you can get away with 2mm since .5mm spacers are harder to come by.

  7. #7
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    Quote Originally Posted by JohnDThompson View Post
    I can't quite tell what "Record" arm you have (Campy has had a number of designs called "Record" over the years), but it appears to be the classic 1960s-1980s version (which itself had a significant change in 1977 to comply with CPSC regulations). In any case, these arms expect to be mounted on an asymmetrical spindle, but the Chorus bottom bracket uses a symmetrical spindle. More information would be helpful. Are there any markings on the back of the arm?
    Thx for answering... There is a STRADA 170 mark on the back.

  8. #8
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by emerson_eller View Post
    Thx for answering... There is a STRADA 170 mark on the back.
    Strada = road crank arm
    170 = length

    Are there any numbers in a diamond or circle? E.g.:



    That number is a date code that tells when the arm was made and can help determine whether it was before or after the CPSC mandated changes.

    http://www.classicrendezvous.com/Ita...mpy_cranks.htm

  9. #9
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    Quote Originally Posted by JohnDThompson View Post
    Strada = road crank arm
    170 = length

    Are there any numbers in a diamond or circle? E.g.:



    That number is a date code that tells when the arm was made and can help determine whether it was before or after the CPSC mandated changes.

    http://www.classicrendezvous.com/Ita...mpy_cranks.htm
    Here is a picture of my crank with the number 2 marked on the back...
    $T2eC16ZHJHMFH!dfS2h0BRyG--e5M!~~60_12.JPG

  10. #10
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    Quote Originally Posted by solipsist716 View Post
    I highly doubt OP will be able to figure this out. Just a hunch.
    Probably a valid concern, just thought I'd mention since buying two or three spacers is much cheaper than a new BB spindle, especially vintage Record.

  11. #11
    Schwinn Magnet 63_dorinte's Avatar
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    FWIW, I am using a vintage Nuovo Record crank on a modern 112mm Veloce cartridge BB on a fixed gear vintage Trek. Frame clearance is good, side-to-side is balanced, and a 45T ring on the outside lines up perfectly to the cog on a modern FG hub. Chainring clearance on your frame may be different. Different era Record cranks also had varying offsets and spindle tapers, so it may or may not work with your cranks.

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    Veteran Bastard Scrodzilla's Avatar
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    This is a family-friendly forum. Let's leave your mother's tongue out of this.

    edit: now that Tom deleted the post I was referring to, this joke makes little sense.
    Last edited by Scrodzilla; 07-25-13 at 06:19 AM.

  13. #13
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
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    Did a wee bit of cleanup here. Let's take it a little easier on the newbies, folks. because without them, we wind ujp talking to ourselves in an echo chamber.
    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


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  14. #14
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    Quote Originally Posted by seau grateau View Post
    need a record bb for a record crank

    a quick google leads me to believe you need a spindle length in the 112-115mm range
    Quote Originally Posted by JohnDThompson View Post
    Strada = road crank arm
    170 = length

    Are there any numbers in a diamond or circle? E.g.:



    That number is a date code that tells when the arm was made and can help determine whether it was before or after the CPSC mandated changes.

    http://www.classicrendezvous.com/Ita...mpy_cranks.htm
    Quote Originally Posted by 63_dorinte View Post
    FWIW, I am using a vintage Nuovo Record crank on a modern 112mm Veloce cartridge BB on a fixed gear vintage Trek. Frame clearance is good, side-to-side is balanced, and a 45T ring on the outside lines up perfectly to the cog on a modern FG hub. Chainring clearance on your frame may be different. Different era Record cranks also had varying offsets and spindle tapers, so it may or may not work with your cranks.
    Quote Originally Posted by MNTC View Post
    Do not need a Record BB - space the fixed cup out 2.5mm (or even just 2mm) and this setup will work fine. Spindle selection is trial and error for your frame for single speed, 115.5mm would be what you'd use for a double. I would try the 102mm spindle and FC spacers first

    EDIT: Just to make this more clear, by spacing one side of the bearing (the fixed cup) out 2.5mm, you can tighten in the adjustable cup an additional 2.5mm, giving you 5mm of total offset - appropriate for a Record crank. But in reality you can get away with 2mm since .5mm spacers are harder to come by.
    Quote Originally Posted by Mumonkan View Post
    need a record bb for a record crank

    a quick google leads me to believe you need a spindle length in the 112-115mm range

    I didn't see the link supplied by you John, sorry about that and thanks for answering.


    MNTC, I got your point but I just have another campy bb as seau and Mumonkan said so I guess I'll use it. thx guys.


    63_dorinte, I'd appreciated your help.

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