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  1. #1
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    Question About Ebayer

    I need a crankshaft or axle (I don't know what it's called, the shaft that the cranks are attached to.) for my 1977 Super Mirage. I found the cranks and chainwheels on Ebay. The seller didn't mention the shaft, so I emailed him/her and asked if one was available.
    The seller has 100% positive feedback, but hasn't replied to two emails.
    I guess I have to assume that I'm not going to get the courtesy of a reply, and that one is not available?

  2. #2
    Pedal pusher... alicestrong's Avatar
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    It's a holiday weekend, when did you email?
    May you live long, live strong, and live happy!

  3. #3
    Let your bike be the tool cranky old road's Avatar
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    "Spindle"
    Never try to teach a pig to sing...

  4. #4
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    Quote Originally Posted by cranky old road View Post
    "Spindle"
    Bottom bracket?

  5. #5
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    Quote Originally Posted by alicestrong View Post
    It's a holiday weekend, when did you email?
    The 21st and the 25th.

  6. #6
    rebmeM roineS JanMM's Avatar
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    Axle=spindle
    Bottom bracket would include axle, cones, cups, bearings. I think.
    RANS V3 (steel), RANS V-Rex, RANS Screamer

  7. #7
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    I appreciate the lesson on the terminology. Spindle it is. I'm a car guy. It would be a "crankshaft" to me! "Bottom bracket" sounds like some real old school terminology there.
    Too bad I can't get the seller to contact me. All I'm trying to do is give him/her money. 8-)

  8. #8
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    I said bottom bracket because I figured you need the cups and bearings too. I like Shimano UN51 sealed cartridge BB. You might want to get one of those if your crank is square taper.

  9. #9
    Long Distance Cyclist Machka's Avatar
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    In two years you didn't ...

    a) learn some bicycle terminology
    b) fix your bicycle?
    http://www.bikeforums.net/showthread...t=#post8296892

    And you're upset that someone didn't respond to your email in 1 week?

  10. #10
    Senior Member Retro Grouch's Avatar
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    Quote Originally Posted by Machka View Post
    In thirty two years you didn't ...

    a) learn some bicycle terminology
    b) fix your bicycle?
    http://www.bikeforums.net/showthread...t=#post8296892

    And you're upset that someone didn't respond to your email in 1 week?
    I fixed it for you.

  11. #11
    Godbotherer dwellman's Avatar
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    It's ebay.

    That is all.
    "Do you not know that in a race all the runners run, but only one gets the prize? Run in such a way as to get the prize"
    "So I do not run like someone who doesn't run toward the finish line. I do not fight like a boxer who hits nothing but air."
    "And let us run with endurance the race God has set before us."
    "I have fought the good fight, I have finished the race, I have kept the faith."

  12. #12
    SE Wis dedhed's Avatar
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    Before you order anything you need to know what you are ordering. Things like what length of spindle, is the spindle symetrical or non, what threading do you need on the cups, what is the taper for the crank you 'd like to use?
    '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400

  13. #13
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    Quote Originally Posted by dedhed View Post
    Before you order anything you need to know what you are ordering. Things like what length of spindle, is the spindle symetrical or non, what threading do you need on the cups, what is the taper for the crank you 'd like to use?
    Wow, thanks dedhed. I was wondering about dimensions like you mention. I guess I'm going to need a parts bike to get a match.

  14. #14
    Must... ride... more... Phil_gretz's Avatar
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    Chainline And Threads

    Quote Originally Posted by 408mopar View Post
    Wow, thanks dedhed. I was wondering about dimensions like you mention. I guess I'm going to need a parts bike to get a match.
    Start with the chainline that you want to achieve. Do a google search on "chainline" and you will learn how to measure, and how to determine your optimum.

    Next, determine whether your Motobecane frame is of French or Asian manufacture. This will be evidenced by the thread type within your bottom bracket shell.

    Take the bike to a qualified local bike shop or coop with trained volunteers, and see if you (they) can find a proper bottom bracket bearing/cone/lockring/spindle setup for your bottom bracket. Best to use loose parts rather than a cartridge bearing, so that you can change out spindle lengths as necessary...

    Next comes the empirical part, the spindle length will determine the chainline for your crankset. Doing a search on your particular crankset [may] yield discussions by users who have achieved certain chainline using various spindle lengths. It may not.

    If not, you'll need to use trial and error, mounting your drive side crank to a mounted spindle and measuring the resulting chainline. Adjust spindle length to suit your objective - swap out spindles to get the correct length.

    If the whole setup is French...good luck finding compatible threaded parts.
    If Japanese - you'll have no problems - the coop or LBS will have all you need in their take-off parts bin. Get new bearings, though, and use good quality grease.

    PG

  15. #15
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    Quote Originally Posted by Phil_gretz View Post
    Start with the chainline that you want to achieve. Do a google search on "chainline" and you will learn how to measure, and how to determine your optimum.

    Next, determine whether your Motobecane frame is of French or Asian manufacture. This will be evidenced by the thread type within your bottom bracket shell.

    Take the bike to a qualified local bike shop or coop with trained volunteers, and see if you (they) can find a proper bottom bracket bearing/cone/lockring/spindle setup for your bottom bracket. Best to use loose parts rather than a cartridge bearing, so that you can change out spindle lengths as necessary...

    Next comes the empirical part, the spindle length will determine the chainline for your crankset. Doing a search on your particular crankset [may] yield discussions by users who have achieved certain chainline using various spindle lengths. It may not.

    If not, you'll need to use trial and error, mounting your drive side crank to a mounted spindle and measuring the resulting chainline. Adjust spindle length to suit your objective - swap out spindles to get the correct length.

    If the whole setup is French...good luck finding compatible threaded parts.
    If Japanese - you'll have no problems - the coop or LBS will have all you need in their take-off parts bin. Get new bearings, though, and use good quality grease.

    PG
    Yikes! Thank you for your in-depth post, Phil. I like this bike, but I'm not going through all of that. If I find a parts bike, I will be lucky. But that's all this is worth to me, time and effort -wise.

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