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OneUp continues to push the 1X drivetrain game further and further, offering riders a bigger spread of 1X setups. We were shown a prototype cassette with a massive 10 to 45-tooth range. Apparently it uses a custom driver body that's different than SRAM's XD driver. OneUp indicated that several hub manufacturers are onboard. Expect the cassette and driver to come at a good price when they're ready for market. Oh, and that super lightweight chainguide you see is also on the way. More details soon...