Bike Comparison
    MSRP
    $225$549
    Where to Buy
    $1

    At

    $549

    At Trek

    Category
    General YouthGeneral Youth
    Weight
    21.1 lbs
    2.4
    AluminumAluminum
    Fork
    SteelAluminum
    Wheels
    AluminumAluminum
    Wheel Size
    16″24″
    Brakes
    CoasterRim
    Groupset
    microSHIFT Acolyte
    Drivetrain
    Single-speed1 × 8
    Brand Site

    gtbicycles.com

    trekbikes.com

    Summary
    The GT Siren 16" is a 16″ aluminum frame general youth bike with coaster brakes.
    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)

    8 mph

    2020 Siren 16"

    18 mph

    2024 Wahoo 24 Path

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Frame

    16" GT LegitFit Design, Alloy

    Alpha Silver Aluminum, 24''

    Fork

    GT Hi-Ten Steel, 1" threaded steerer

    Wahoo 24'' alloy, V-brake bosses, ThruSkew 5mm QR

    Bottom Bracket

    Steel, ball type

    Sealed cartridge, 68mm

    Headset

    Steel, 1"

    Integrated, sealed cartridge bearings

    Stem

    2-Bolt Alloy Top, Steel Quill

    Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length

    Handlebar

    Steel Riser bar, 130mm rise, 500mm width

    Bontrager alloy, 31.8mm, 15mm rise, 580mm width

    Saddle

    GT 1-piece

    Kids' padded, integrated seatpost, Blendr light mount, 31.6x270mm

    Seatpost

    Alloy

    Pedals

    Jr. BMX design, resin

    Kids' Satellite, 9/16 thread

    Grips

    95mm closed end

    Size: 24" wheel, Kids' grip, 108mm width, lock-on; Size: 24" wheel, Kids' grip, 110mm width; Size: 24" wheel, Kids' grip, 108mm width

    Groupset
    Rear Derailleur

    microSHIFT Acolyte M5180S, 34-38T max cog

    Crank

    Forged One-Piece Type, 89mm, steel, 28T

    Alloy, 28T steel ring, chainguard, 127mm length

    Shifters

    microSHIFT Acolyte SL-M6285, 8 speed

    Cassette

    16T Coaster

    microSHIFT Acolyte H083, 11-38, 8 speed

    Chain

    KMC HV410 1/2" x 1/8"

    KMC Z8

    Brakes

    Coaster

    Alloy linear-pull

    Brake Levers

    Kids' alloy brake lever, black

    Wheels
    Rims

    Alloy, 20h

    Alloy 24'', 28h

    Spokes

    Stainless Steel, 14g

    Front Hub

    Steel, Nutted axle

    Formula alloy, 100mm ThruSkew

    Rear Hub

    Steel, nutted axle, coaster brake

    Formula FM32 alloy, 135x5mm

    Tires

    GT 16 x 1.95"GT 16 x 1.95" GT 16 x 1.95"

    Bontrager Connection Comp, wire bead, 30 tpi, 24x2.00''

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