Product information:

Material: high carbon steel
Frame structure: integral car 
Deadweight: 120kg
Brake system: double disc brake
Frame type: Hard frame
Front fork type: spring fork (low grade no damping)
Configuration level: Standard
Foot type: beaded foot
Brake type: front and rear mechanical disc brake
Size: 26 x17inch

Top match: 21 speed, 24 speed, 27 speed, 30 speed
Frame: front and rear disc brakes
Front fork: 3.18 steel pipe front fork (21 speed, 24 speed, 27 speed) 3.8 Locking front fork (30 speed)
Finger-dialing: one-piece non-positioning (21 speed 24 speed 27 speed), Lingxiang Kit [finger-dialing](30 speed)
Front dial: 31.8 Pull up cable (21 speed 24 speed 27 speed), Lingxiang Kit [forward dial](30 speed)
Back dial: 04 eye dial (21 speed 24 speed), 50 back dial (27 speed), Lingxiang Kit [back dial] (30 speed)
Tower wheels: 7 pieces of non-positioned tower wheels (21 speeds), 8 pieces of non-positioned tower wheels (24 speeds), 9 pieces of positioned tower wheels (27 speeds), 10 pieces of positioned tower wheels (30 speeds)
Rims: Double layer 40pcs aluminum alloy
Central shaft: 3S shaft (21 speed 24 speed), sealing shaft (27 speed 30 speed)
Tire :24*26*195 non-slip

Packing list:

Bicycle*1