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Join Date: Feb 2006
Location: Sin City, Nevada
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Bikes: Catrike 700, Greenspeed GTO trike, , Linear LWB recumbent, Haluzak Horizon SWB recumbent, Balance 450 MTB, Cannondale SM800 Beast of the East
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SRAM Dual-Drive is a great idea for achieving 3X8 or 3X9 in the rear but the company ceased producing internal hubs in February 2017 so what is available on the market is all there is and you will not be able to buy replacement hubs in the future. You can still do the same thing with Sturmey Archer hubs and they is no sign SA is abandoning the market as SRAM has. BTW SRAM sucks when it comes to being able to get replacement parts for the hubs they no longer make so that's something to consider too.