United Motocross BMX Bike

$749.00 $899.00

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PRODUCT INFO

professionally built bmx bikes for sale

UNITED MOTOCROSS BMX BIKE KEY FEATURES:

  • Long 21" top tube for taller riders
  • Sealed bearings throughout for a more trustworthy ride
  • Loud rear cassette hub
  • Harder 28/9 gearing
  • More stable 'trails' geometry
  • United Indirect tires can handle the dirt!

  • Wow, what a rig! For those needing some extra room, the United Motocross bike is ready for ya. A longer 21" top tube caters to the taller rider, with jump-ready geometry and sealed bearings throughout to make it more durable.

    The United Motocross bike looks the goods, with United aftermarket rubber to keep you sticking in the dirt - the Motocross even comes with a Bicycle Union top tube pad for extra style points!

    FRAME GEOMETRY:

    • Toptube Length: 21"
    • Chainstay Length: 13.25"
    • Headtube Angle: 74.5°
    • Seattube Angle: 71°
    • Standover Height: 8.5″
    • Bottom Bracket Height: 11.6"
    SPECS:
    • Top Tube Length 21” Frame, Cromo Top Tube, Welded Brake Mounts, Integrated Head Tube, Mid BB, CNC Seat Stay Bridge Embossed Logo Down Tube Gusset
    • Forks: CRMO Steerer Tube, Integrated Bearing Race, Tapered 1020 Hi Tensile Steel Legs
    • Handlebars: 9” X 29” 1020 Hi Tensile Steel, 1° Up Sweep, 12° Back Sweep
    • Grips: United Jimmy Grips & United Bar Ends
    • Headset: United Integrated Sealed Bearing
    • Stem: United 50mm Reach Top Load Stem, Embossed United Logo, Forged Detailing
    • Rear Lever: Alloy
    • Rear Brake: 990
    • Cranks: 3pc 170mm, Tubular CRMO, 8 Spline
    • BB: United Sealed Bearing Mid
    • Sprocket: 28t Steel
    • Pedals: United Supreme PC
    • Chain: X410
    • Rear Rim: Alloy 36h, Single Wall
    • Front Rim: Alloy 36h, Aero, Single Wall
    • Rear Hub: 36h United Supreme Sealed Cassette Hub, 14mm Axle, Sealed Bearing 9t Driver, 4 Pawl, Ultra Loud Mechanism
    • Front Hub: 36h Sealed Bearing, 10mm Female Axle
    • Rear Tire: United Indirect 20 X 2.10”
    • Front Tire: United In-Direct 20 X 2.35”
    • Seat: United Padded Seat/Post Combo
    • Seat Post: Integrated
    • Seat Clamp: Alloy
    BMX BIKE SIZE GUIDE

    Please use BMX bike sizing as a guide only. Size guide does not take into account skill level or riding preference, so you may need to get a longer or shorter top tube length to suit your style of riding.

    Junior (smaller than 20" wheels) BMX bikes sizing

    Rider Age Rider Height Bike Size
    1.5 - 4 years  80 - 110cm Balance Bike
    3 - 6 years 95 - 115cm 12" wheels
    4 - 8 years 100 - 130cm 14" wheels
    5 - 9 years 110 - 140cm 16" wheels
    7 - 12 years 120 - 155cm 18" wheels

     

    20" wheeled BMX bikes sizing

    All bikes below have 20" wheels, which makes the top tube length the determining factor for optimum sizing.

    Rider Height Bike Categories Top Tube Length
    135 - 150cm  Youth BMX bike 18.5" - 20.25"
    145 - 165cm  Youth BMX bike 19.8" - 20.5"
    155 - 170cm

    Youth BMX bike
    Adult BMX bike

    20.25" - 20.75"
    165 - 180cm Adult BMX bike 20.5" - 21"

    175cm +

    Adult BMX bike

    21" - 21.5"

     

    Larger than 20" wheeled BMX bikes sizing

    BMX bikes with 22" - 27.5" wheels suit riders of many sizes, but can be more practical for taller riders.

    Rider Height Wheel Size
    170cm + 22" and up

     

    BMX bike shipping info

    All BMX bikes are shipped in a bike box at a flat rate
    of $35 Australia wide.

    Bikes are shipped using Startrack Express or Australia Post,
    some assembly is required once received and can be done using a basic BMX tool kit and bike pump.

    We provide an optional pre-service bike build to
    dramatically cut down on the assembly and prolong the life of your bike, which
    can be added at the checkout.

    Customer Reviews

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    e
    eli wilkie
    united motocross bmx

    rad