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  1. #1
    mtbr member
    Join Date
    Feb 2010

    Shimano Nexus SG-7R46 Hub Assembly, Newcomer Needs Your Help!

    I have been riding bicycles for 30 years but never once had to assemble or adjust anything on the bikes I have ridden, my brother sold me a pretty nice Phat beachcrusier/Chopper bike and installed a Shimano Nexus SG-7R46 37 spoke 7 speed hub. The other day I was wiping it down as I always do from time to time and only a few minutes into riding it I was stuck in first gear, I noticed the shifting mechanism was hanging off the hub. I took it home a very carefully took the wheel off and just don't have a clue how it go's back together, I have seen the exploded view of the hub and that didn't help at all since it only shows one side of the hub, the side I need to see is not visible. I have provided some pictures of my hub in hopes someone can tell me how to put it back together, I fiddled with it for over 2 hours and am at the end of m rope! The thing that has "Lock" written on it somehow locks the shifting mechanism onto the hub only I spent over two hours trying, does anyone know how to assemble this damn thing? Thank you

    Best regards

  2. #2
    mtbr member
    Reputation: Wombat's Avatar
    Join Date
    Jan 2004
    Perhaps post this in the internal gear hubs forum. It has more traffic and lots of experience.


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