Model:GL-550
21 speed, 24 speed, 27 speed, 30 speed
Colors: black ,gray, white, blue
High carbon steel frame
Bold suspension front fork
Aluminum alloy flower drum
Ball bearing axis
Braking system: front and rear dual disc brakes
Three steel plate crank
Chain 21 speed 7S, 24 speed 8S, 27 speed 9S
Mechanical dual disc brake
Magnesium alloy integrated wheel set
700C*23C (27.5inch), vehicle height 98CM
length 169CM, tire diameter 66CM
Saddle height 79-94CM, suitable for height 160-190CM
Load Capacity 120kg
Gross Weight 17kg