Front vertical pole: ROCKBROS Aluminum alloy. Cushion: ROCKBROS cushion. Chain ring: Prowheel aluminium crank four-jaw 24/34/42T. Crank:Aluminum alloy. Speed shift: SHIMANO FD TY300(Forward dial)/RD M310(Back dial).
ROCKBROS MT400 29" Mountain Bike 10-Speeds 16/18/21" Frame Hydraulic Disc Brakes
ROCKBROS 29"Mountain Bike MT400 10 Speed Disc BrakeAluminum Frame White M
ROCKBROS 20" Folding Bike,Shimano 8-speed V Brakes,Lightweight Aluminium Frame
ROCKBROS ATS Classic 700C Road Bike 10-Speeds Aluminum Frame City Bike XS(420)
ROCKBROS ATS Classic 700C Road Bike 10-Speeds Aluminum Frame City Bike M(480)
ROCKBROS SKN 20"Folding Bike,7 Speeds Disc Brakes with Luggage Rack & Mudguards
