The aim is for the Efneo planetary gearbox to replace front derailleur gears. It has one chainring rotating at three different speeds on each gear and is claimed to be equivalent to a front crankset equipped with 28t/40t/50t rings.
Steel front suspension with 18-speed gears and MLG-26I Falcon gear shifters, and with MF-31 Falcon front derailleur gears and MR-22 rear derailleur gears.
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