1 frame : steel double suspension frame
2 fork : suspension fork
3 handlebar : ultralight ,wearproof handlebar
4 stem : reinforced stem
5 seat post : MTB model
6 saddle : MTB model
7 shifter : 21 speed shifter
8 freewheel : 7 pcs
9 chain : MTB model
10 rim : alloy double wall rim
11 hub : mtb model
12 brake : double disc brake

Note: This spec sheet is only for reference, we can give you competitive offer according to your request.