1). Material : Carbon Steel and plastic cover which is using high quality strong 4mm ABS+PMMA anti-scratch glossy plastic.
2). Rear shock : 190mm-240mm are suitable.
3). Head tube for 1.1/8-inch non-integrated steering tube, 130 mm in length. Seat post 31.6 mm.
4). Spindle – square taper (the bottom bracket with sealed bearings is included in the parcel).
5). Rear fork Dropout width: 135mm or 150mm (Can Switch from 135mm to 150mm ,or from 150mm to 135mm )
6). Standard derailleur mounting (derailleur hanger) .