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  • Just messaged the guy I bought it from, he says it's intentional. He says that by spinning the hub you can increase or decrease the tension of the Kevlar

  • to be fair, when I kept on turning it to see what happened, the kevlar was pulled away from the flange of the hub a bit. It might actually of been doing something

    Sadly the russians didn't like to document how anything they made works

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