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    Ultrasonic 242018 Author
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Road Youth
    Weight
    		20.9 lbs
    2.5
    Frame
    		Aluminum
    		Aluminum
    Wheels
    		Aluminum
    Wheel Size
    		24″
    		Tektro Rim
    		Alivio
    Drivetrain
    		1 × 9
    Brand Site

    en.author.eu

    Summary
    		The Author Ultrasonic 24 is a 24″ aluminum frame road youth bike with mid-range components and tektro rim brakes.

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    Insights
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    21 mph

    Ultrasonic 24

    Highest gear

    (descending)

    Geometry
    Specs
    Ultrasonic 242018 Author
    Frame

    triple butted hydroformed alloy 6061 24'

    Color: Silver / Blue

    Fork

    alloy 6061 24'

    Stem

    AUTHOR alloy

    Handlebar

    AUTHOR 0 mm 600 mm

    Saddle

    AUTHOR Champion CR

    Seatpost

    AUTHOR alloy (31.6)

    Type: Rigid

    Pedals

    alloy

    Grips

    AUTHOR kratton rubber

    Groupset
    Rear Derailleur

    SHIMANO Alivio

    Crank

    SAMOX 32 teeth 152 mm cranks

    Shifters

    SHIMANO Alivio (9)

    Cassette

    SHIMANO HG400-9 11-34 (9)

    Chain

    KMC Z99

    Brakes

    TEKTRO V

    Type: Tektro Rim

    Wheels
    Rims

    alloy 24 holes

    Spokes

    black steel

    Front Hub

    QUANDO 24 holes

    Rear Hub

    QUANDO 24 holes

    Tires

    KENDA Small Block Eight kevlar 24' x 1.95'

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