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    • material: aluminium
    • 12" wheelsize
    • 112x9/100x9 wheelsize
    • BMX bottom bracket standard
    frame size 7"
    brakes Tektro 985A caliper
    brake lever APSE BL-01 alloy
    headset VP H721
    • material: aluminium
    • 440mm width
    • 120mm rise
    • material: aluminium
    • 22.2mm diameter

    • 42 mm

    grip Kraton
    seat clamp Alloy Allen
    saddle MERIDA kid little
    pedal Wellgo LU-P17
    chain KMC S1
    crank 81 mm
    • 16 teeth
    • 1 speed
    bottom bracket Black steel, 9pcs
    hubs KT KT134 / KT KT305R coaster
    • material: aluminium
    spokes Steel UCP
    kickstand Support side wheel
    weight 8.3 kg
    Bike Frame Geometry Image
    Frame Size 7"
    Tyre Sizes 12"
    Frame Size Inch 7
    ST seat tube [mm] 180
    TT top tube [mm] 300
    CS chain stay length [mm] 241
    HTA head tube angle [°] 70.5
    STA seat tube angle [°] 73
    BD bottom bracked drop [mm] 8
    HT head tube [mm] 80
    FL fork length [mm] 199
    R reach [mm] 221
    S stack [mm] 259
    WB wheel base [mm] 583
    SH stand over height [mm] 317
    Body Height Cm < 110

    To reduce production and delivery times, we are sometimes forced to make last-minute specification changes. Please be aware that those changes might not be reflected on these product pages and images.



    Durable aluminium frame. For 24" and 20" wheels with replaceable dropout hanger and equipped with mounts for rack, mudguards and kickstand. 16" or 12" wheel options are optimised for the use with training wheels.

    The specific demands on childrens' components make them differ a lot from adult components. Not only that kids are smaller, but also do not have the same strength in their hands, for example, when it comes to braking. That's why we have chosen specific components to ensure that our youngest cyclists are able to use their bikes safely and comfortably and make them easy to handle in any situation.

    Our MATTS J.+ bikes feature not just the well-proven weight and geometry optimised frame but are also designed around a lightweight, rigid fork combined with 20" or 24" 'plus' tyres for extra grip and comfort. The result, no unnecessary weight, simple, stylish and hugely effective.

    Many of our bikes feature rigid forks. This helps to keep the weight down, which is a big advantage for much lighter riders. Gears are also kept to a minimum, avoiding confusion for young riders, as well as reducing weight.

    All kids' bike frames are made with the same 6061 lightweight aluminium we use in our adult bikes; we don't cut any corners. They're also painted and lacquered in the same way, so the bikes can still look great even after a few tough knocks.


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    We use a minimum of 6061 grade aluminium on all our bikes. It’s particularly well suited to being shaped with our hydroforming and technoforming processes, which allow us to vary the wall thickness to create double-butted tubing and complex frame shapes. It’s also an alloy that welds easily, and once it has been carefully heat treated to maximise strength, it means we can create strong and lightweight bicycle frames for you to enjoy.

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