Frame: 4130 chromoly, ViceGrip technologies Fork: Dahon Slip Stream aluminum fork Handlepost: Radius onepiece, Outside folding, H:300mm, 8deg. Wheels: 20" 451, OLD 74mm/130mm, 20h/28h Gear: Shimano Altus 1x8 speeds Crank: Dahon Alloy, 53T, CNC Chain guard Brakes: Aluminum V brakes *Bicycle specifications may vary without notice in different territories and from time to time. Always check specifications with us.