MATTS J. 20+


By matching oversize and grippy 20" ‘Plus’ tyres to a rigid fork, we’ve made a kid’s specific monster truck that delivers all of the fun, but without the weight.
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  • *All specifications listed are subject to change without notice. *Recommended Retail Prices are subject to change without notice.

  • The MATTS J20 Plus is a fat-tyred monster truck that offers the control and grip of chunky 20" oversize tyres, paired to a rigid fork that keeps excess weight to the absolute minimum. Add in our kids specific finishing kit, powerful hydraulic disc brakes and a smooth Shimano drivetrain and you’ve got an awful lot of fun without the fat. Suits heights from approx. 109-129 cm tall.

    Our MATTS J range is designed for the heroes of tomorrow, which is why we put all the know-how gained from years of making adult bikes into lightweight, high-quality machines for kids to enjoy. High-quality components chosen specifically for the needs of children are married to our aluminium frames that are created with the same painstaking attention to detail and quality of finish as the rest of our bikes. That’s the only way to guarantee that young riders get the same enjoyment of cycling, safe in the knowledge that their bike will never let them down. Whatever your age, your level of ability or your size, we have the perfect first MERIDA ready for you. See you on the start line!

    • Lightweight double butted aluminium frame
    • Grippy, oversize ‘Plus’ 20” tyres for extra comfort and control
    • Rigid fork helps keep weight down
    • Shimano drivetrain
    • Hydraulic disc brakes
    • Kid specific finishing kit
    • material: aluminium
    • 20x2.4" max. wheelsize
    • 135x9/100x9mm axle standard
    • BSA bottom bracket standard
    frame size 10"
    • material: aluminium
    • 20x2.4" max. wheelsize
    derailleur (r) Shimano RD-M310
    shifter rear Altus
    brake lever Power DS100
    • 2 piston, hydraulic disc brake
    • 2 piston, hydraulic disc brake
    chain KMC NS8
    crank 127 mm
    • 100x9mm width front hub
    • 20 spoke holes
    • 135x9mm width rear hub
    • 24 spoke holes
    • material: aluminium
    • 14-34 teeth
    • 7 speed
    spokes Black steel
    • material: aluminium
    • 31.8mm diameter
    • -5° stem angle
    • 60 mm
    • material: aluminium
    • 620mm width
    • 0mm rise
    headset FSA TH888
    • material: aluminium
    • 27.2mm diameter
    • 15mm setback
    saddle MERIDA COMP JR
    kickstand center type alloy
    max. weight 80 kg
    Bike Frame Geometry Image
    Frame Size 10"
    Tyre Sizes 20"
    ST seat tube [mm] 240
    TT top tube [mm] 445
    CS chain stay length [mm] 360
    HTA head tube angle [°] 68
    STA seat tube angle [°] 72
    BD bottom bracked drop [mm] 20
    HT head tube [mm] 120
    FL fork length [mm] 340
    R reach [mm] 305
    S stack [mm] 432
    WB wheel base [mm] 872
    SH stand over height [mm] 483

    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.




    We use a minimum of 6061 aluminium. The pay back is that it’s possible to make lighter and more advanced frames. We use an additional heat treatment and double-butted wall thicknesses to produce light and stiff frames.



    ‘F-Mount’ equipped bikes have integrated fittings for mud guards (some bikes require model specific mud guards), making fitting fast and simple.



    Integrated mount on the chainstay to fit a MERIDA kickstand (or any commercial kickstand).



    ‘C-Mount’ equipped bikes have the fixing points for a rear rack already integrated (some bikes require model specific rear rack), making fitting fast, simple and reliable.