Soul-Kozak's LoopsDrive concept uses tension from a series of rings to transmit power into the rear wheel, offering advantages like less drag, improved resistance to dirt, and ultra-fast engagement.
The LoopsDrive idea features tension vs. compression in power transfer and separates hub/axle sealing from the engagement mechanism instead of making everything small to fit inside a sealed hubshell.
LoopsDrive's freehub clutch utilizes tension rather than compression, with loop springs hanging off the cassette's biggest cog to catch hooks for power transfer.
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