1)Size.: 12,14, 16 ,18, 20
2)Frame: steel,and painting for kids, down tube 48*1.2mm, front face 33x1.5mm
3) B.B parts:3pcs,B.B Axle, B.B Cup.
4) Brake: F: Calliper brake R:Band brake
5) Tire: 12x2.125 , 16x2.125, 20x2.125
6) Handle bar: 22x1.0mm
7)Chainwheel&cranks: 12 24Tx89, 1628Tx102, 20 28Tx127. ED
8) Pedal: without ball, plastic, with yellow reflector .
9) Saddle: leather , spring 6.0mm .
10) Rim: Aluminium
11) Training wheel/side wheel: thickening 2.5 mm ED
12) Color to order
Warrant: