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    Recommended
    MSRP
    $799
    Where to Buy
    $1

    At

    Category
    Mountain Youth
    Weight
    17.2 lbs
    Frame
    Aluminum
    Carbon
    Wheels
    Aluminum
    Wheel Size
    20″
    Promax Hydraulic Disc
    Drivetrain
    Brand Site

    woom.com

    Summary
    The woom OFF 4 is a 20″ aluminum frame mountain youth bike with promax hydraulic disc brakes.

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    Insights
    Geometry
    Specs
    Frame

    Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes, 20″ wheels, Easy-access low top tube to assist dismounting, Long wheelbase and low center of gravity to aid balancing

    Fork

    Light carbon fork, 1″ – 1 ⅛″ baby taper shaft, 100 x 15 mm thru axles, Post mount for disc brake

    Headset

    Fully integrated 1" – 1 ⅛" headset, Sealed industrial bearings

    Stem

    Forged aluminum, CNC-machined, Handlebars attached via two clamps, +/-15° flip-flop design to adjust handlebar height, Length: 50 mm

    Handlebar

    Wide, ergonomically adapted and lightweight aluminum bars for more control, Sandblasted and silver anodized, Width: 600 mm, Rise: 20 mm

    Saddle

    Ergonomically designed to fit children's anatomy, Non-toxic, Side protection to lean against walls

    Seatpost

    27.2 x 250 mm, Anodized aluminum seatpost with insertion marks that indicate the minimum insertion depth

    TypeRigid

    Grips

    Child-friendly thanks to small diameter, 100% silicone for maximum grip, Non-toxic, Screwed-in end plugs

    Groupset
    Brakes

    Hydraulic disc brakes by Promax, Rotor diameter front/back: 140/140 mm, Ergonomic brake levers designed for children's hands

    TypePromax Hydraulic Disc

    Wheels
    Rims

    Superlight woom OFF DISCO TEC double-chamber aluminum rims, Aluminum hubs with sealed industrial bearings, Thru axles for maximum torsional strength (100 x 15 mm front / 135 x 12 mm rear), 20 G14 spokes, double-crossed spoking, Aluminum nipples

    Tires

    20 x 2.25″ Schwalbe Rocket Ron with ADDIX SPEED rubber compound, Quality MTB tires with low rolling resistance, maximum grip, good shock absorption and excellent durability, Schrader valves compatible with most standard bike pumps

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