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Old 06-10-14, 10:58 AM   #1
nyc_commuter
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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
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Old 06-10-14, 12:30 PM   #2
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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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