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    Impulse2017 Author
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Crosscountry
    Weight
    		31.7 lbs
    3.4
    Frame
    		Aluminum
    		RST GILA
    Wheels
    		Aluminum
    Wheel Size
    		27.5″
    		Tektro Hydraulic Disc
    		Tourney, Altus
    Drivetrain
    		3 × 8
    Suspension
    		Hardtail
    Front Travel
    		100mm
    Brand Site

    en.author.eu

    Summary
    		The Author Impulse is a 27.5″ aluminum frame hardtail crosscountry bike with modest components.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Impulse
    Other Crosscountry bikes
    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)

    29 mph

    Impulse

    Highest gear

    (descending)

    Geometry
    Specs
    Impulse2017 Author
    Frame

    alloy 6061 27.5"

    Colors: White / Blue; Silver-Matt / Red

    Fork

    RST Gila 27.5 ML lock out (100 mm)

    Travel: 100mm

    Spring Type: Coil

    Stem

    AUTHOR alloy

    Handlebar

    AUTHOR 8° 660 / 680 mm

    Saddle

    AUTHOR Courier

    Seatpost

    AUTHOR alloy (31.6)

    Type: Rigid

    Pedals

    resin

    Grips

    AUTHOR high density foam

    Groupset
    Rear Derailleur

    SHIMANO Altus

    Front Derailleur

    SHIMANO TY700 (34.9)

    Crank

    PROWHEEL 42-34-24 teeth 170 / 175 mm cranks

    Shifters

    SHIMANO Altus (24)

    Cassette

    SHIMANO HG200-8 12-32 (8)

    Chain

    KMC Z72

    Brakes

    TEKTRO disc hydraulic (6" rotors)

    Type: Tektro Hydraulic Disc

    Wheels
    Rims

    AUTHOR Xenon 27.5 32 holes

    Spokes

    black steel

    Front Hub

    QUANDO Disc 32 holes

    Rear Hub

    QUANDO Disc 32 holes

    Tires

    AUTHOR Rocket 27.5" x 2.10"

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