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Thread: Straightening bicycle sprockets - GIF

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    Jon
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    Straightening bicycle sprockets - GIF

    Straightening bicycle sprockets.




    Previously:

    Shaft-driven bicycle - video and photo
    Railroad track bicycle - photo
    Unusual custom bicycle GIF
    Functioning wooden bicycle - GIF

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    Beserkleyboy (11-22-2018), jimfols (11-18-2018), Lee Bell (12-24-2018), Moby Duck (11-17-2018), PJs (11-18-2018), Priemsy (11-17-2018), Seedtick (11-17-2018), suther51 (11-17-2018)

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    Supporting Member Radioman's Avatar
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    Radioman's Tools
    I wonder what the tolerance is that’s she’s setting those to? Is .005 inches ok? Or is it as close as .001?

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    Supporting Member Beserkleyboy's Avatar
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    Beserkleyboy's Tools
    They are only cheap swaged steel cranks. +- .25mm maybe? Probably used on cheap fixed gear/coaster brake bikes, so accuracy not important. Many moons ago in my bicycle life, working in a Schwinn shop in Walnut Creek, Calif, we had a "Schwinn hammer", a very large ball peen hammer, and used it to straighten the Ashtabula cranks and forks....precision engineering...
    Jim


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