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  1. #1
    Senior Member
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    Gates "Surefit" sprockets for belt drive bikes

    I guess this has been around for a while, but I just noticed that Gates now sells a new rear sprocket called "Surefit" that features a new design that makes the sprocket fit flush with the Nexus/Alfine hubs. The biggest (and probably only) problem I've had with my carbon belt drive train is a clicking noise that results from the sprocket not interfacing well with my Nexus hub (there seems to be a small bit of play between the two components). I wasted countless hours trying to chase this noise down only to find later that the answer was already on Gates' FAQ page along with a remedy: wrapping teflon tape around the hub-sprocket interface. The tape method seems to work, but I've found that I have to periodically re-wrap the interface with fresh tape to keep it quiet. Looks like they made this new sprocket specifically to address this issue. Has anyone tried one of these yet?

    http://www.carbondrivesystems.com/~/...t-13-03-28.pdf

  2. #2
    coprolite fietsbob's Avatar
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    Interesting, change , but No, I dont have any bikes with a belt drive at all ..

    Rohloff, chain driven, cost enough ..

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