CB-139 Cartridge Bearing 6904/21.5 2RS 21,5x37x9 Marwi UNION for Bosch e-bike
    CB-139 Cartridge Bearing 6904/21.5 2RS 21,5x37x9 Marwi UNION for Bosch e-bike

    CB-139 Cartridge Bearing 6904/21.5 2RS 21,5x37x9

    CB-139
    In stock
    $10.17
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    Marwi UNION CB-139 Sealed Cartridge bearing 6904 d21.5 2RS 21,5x37x9

    • Used in e-bike drive systems: Bosch
    For any questions please contact us or send an email to:
     
    Bearing use
    Bottom Bracket
    e-Bike Motor
    Bearing model
    Cartridge bearings
    Standard No.
    MR6904/21.5
    Inner diameter
    21.5
    Outer diameter
    37
    Width / Height
    9
    8590966361397
    CB-139

    Marwi UNION derailleur hangers bearings brake pads

    All rear derailleur hangers types for MTB, Mountain, CX, Road and other bikes you can find here.

    Find more information about derailleur hangers at frequently asked questions page or if still have questions and need assitance feel free to contact us.

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