Bearing screw locking fixed steel hub. CST 20 x1.75 A/V. 2.7-speed 14T-28T freewheel.
ROCKBROS SKN 20"Folding Bike,7 Speeds Disc Brakes with Luggage Rack & Mudguards
ROCKBROS SKN 20"7-Speed Folding Bike Adjustable Stem,Steel Frame with Rear Rack
ROCKBROS VDS 20" Folding City Bike Shimano 8 Speed for Teens Adults Disc Brakes
ROCKBROS HRS 16"Folding Bike with 7-Speed Steel Frame Dual C-Brake City Commuter
ROCKBROS 20" Folding Bike,Shimano 8-speed V Brakes,Lightweight Aluminium Frame
ROCKBROS IFN 14"Single Speed Folding Bike for Adult,Aluminum Alloy Frame V brake
