Efneo GTRO Gearbox Crank
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Efneo GTRO Gerabox Crank

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Price: $499.00
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    The Efneo GTRO Gearbox is a 3 Speed Internally Geared Crankset

    Replacement. It will give you an effective gear range identical to

    having a 28/40/50 Triple Crankset up front, without having to use a

    front derailleur. You can shift the Efneo whether you are moving or

    standing still! The Efneo GTRO Gearbox comes in 3 different

    configurations- Twist Shifter, Trigger Shifter, or Bar End Shifter. For

    more information visit www.efneo.com

    Gear ratio GTRO’s 1st gear is a neutral gear (1:1). Second and third gears are incremental. GTRO’s standard chainring is 28T.

    Gear Ratio Teeth equivalent for 28T
    1st 1:1 28T (physical chainring size)
    2nd 1:1,43 40T (physical chainring size)
    3rd 1:1,79 50T (physical chainring size)