MATTS J. 20+

Fat 2.4" tyres provide plenty of comfort and grip, 7 speeds with rapid-fire shifters keep things simple and Tektro hydraulic disc brakes take care of the stopping. Approx 9.5kg.
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It’s all about lightweight for kids.

We care as much about our kids' bikes as we do those in our adult range; all components are as light and child-focused as possible.

We use 1x drivetrains with rapid-fire shifters to make shifting simple and, again, reduce the overall weight.

The Matts Junior + bikes have rigid forks as cheap suspension forks tend to work poorly and weigh a lot. Instead we use fat 2.4" tyres to provide plenty of comfort and grip.

All bikes have a focus on longevity; not just the high quality paint finish, protected by a lacquer coat to keep the bike looking fresh for hand me downs or sale but also the flip-flop stem and spacers allowing for growth, extending the life of Matts Junior+ bikes.

  • Lightweight package
  • Focussed on simplicity
  • Oversized tyres
  • 7 trigger operated gears
  • Hydraulic disc brakes
  • material: aluminium
  • 20x2.4" max. wheelsize
  • 135x9/100x9mm axle standard
  • BSA bottom bracket standard
frame size 10"
  • material: aluminium
  • 20x2.4" max. wheelsize
  • material: aluminium
  • 100x9mm width front hub
  • 20 spoke holes
  • 135x9mm width rear hub
  • 24 spoke holes
crank size 127 mm
bottom bracket Bearing cartridge
  • 14-34 teeth
  • 7 speed
chain KMC NS8
shifters Altus
rear derailleur Shimano RD-M310
  • 160mm
  • 140mm
headset FSA TH888
  • material: aluminium
  • 31.8mm diameter
  • -5° stem angle
  • 60 mm
stem size 60 mm
  • material: aluminium
  • 620mm width
  • 0mm rise
  • material: aluminium
  • 27.2mm diameter
  • 15mm setback
seat clamp MERIDA COMP QR
kickstand center type alloy
pedal Marwi SP-202
Bike Frame Geometry Image
Frame Size 10"
Tyre Sizes 20"
St Seat Tubes mm 240
Tt Top Tubes mm 445
Cs Chain Stays mm 360
HTA head tube angle [°] 68
STA seat tube angle [°] 72
Bd Bottom Bracket Drops mm 20
Ht Head Tube Lengths mm 120
Fl Fork Lengths mm 340
R Reach mm 305
S Stacks mm 432
Wb Wheel Base mm 872
Sh Stand Over Height mm 483




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.