frame J16 Alloy Coaster
frame size 9"
fork Rigid Steel
derailleur (r) -
derailleur (f) -
brake lever Kid Lever
brake front Side Pull
brake rear Coaster in R.Hub.
chainwheel Steel 28T 89L BK
chain Z410A
hub front Steel NT
hub rear Steel Coaster
rim Alloy Black
freewheel 18T
tire front Kid Smooth 16 x 1.75"
spokes Steel UCP
handlebar stem Kid Ahead
handlebar Kid Alloy Rise 480
headset A-Head
seat post Steel 22.2
saddle Matts kid 16
Bike Frame Geometry Image
Frame Size 9"
Tire Sizes 16"
Frame Size Inch 9
Frame Size CM 24
ST seat tube [mm] 235
TT top tube [mm] 400
CS chain stay length [mm] 340
HTA head tube angle [°] 70
STA seat tube angle [°] 72.5
BD bottom bracked drop [mm] 8
HT head tube [mm] 100
FL fork length [mm] 236
R reach [mm] 298
S stack [mm] 324
WB wheel base [mm] 790
SH stand over height [mm] 409
Body Height Cm 100 - 125




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.