Bike Comparison
    Siren Coaster 20"2018 GT
    Recommended
    MSRP
    		$199
    Where to Buy
    —
    $1

    At

    Category
    		General Youth
    Frame
    		Aluminum
    Fork
    		Steel
    Wheels
    		Aluminum
    Wheel Size
    		20″
    Brakes
    Motor
    Battery
    Groupset
    Drivetrain
    		Single-speed
    Brand Site

    gtbicycles.com

    Summary
    		The GT Siren Coaster 20" is a 20″ aluminum frame general youth bike.
    Similar Bikes
    Accessories
    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)

    12 mph

    Siren Coaster 20"

    Highest gear

    (descending)

    Geometry
    Specs
    Siren Coaster 20"2018 GT
    Frame

    20" GT LegitFit Design, Alloy

    Fork

    GT Hi-Ten Steel, 1" Threaded Steerer

    Bottom Bracket

    Steel, Ball type

    Headset

    Steel, 1"

    Stem

    2-Bolt Alloy Top, Steel Quill

    Handlebar

    Steel 580mm width x 176mm rise

    Saddle

    GT 1-piece

    Seatpost

    Alloy

    Pedals

    Jr. BMX design, resin

    Grips

    120mm closed end

    Groupset
    Crank

    Forged One-Piece Type, 127mm, 32T

    Cassette

    16T Coaster

    Chain

    KMC Z410A, 1/2" x 1/8"

    Brakes

    (F) N/A, (R) Coaster

    Wheels
    Rims

    Alloy, 28 Hole

    Front Hub

    (F) Steel, 28 Hole, 3/8" Axle, (R) Steel, 28 Hole, Coaster

    Tires

    GT 20 x 1.95" (F/R)

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