... speed 3.Rim:Aluminum 4.Tire:28"x1.75,rubber 28" oma bikeProduct detailsModel: YTJ-OB28L-601.28"Oma Bike for lady2.Frame ... Part:Steel, ED, 8 pieces6.Carrier:Steel,painted, painted blue7.Saddle:PVC&steel&rubber8.Mudguard:F/R steel, painted pink9.With ... : Single speed13.Spoke:Steel,UCP14.Rim:Aluminum single wall15.Tire:28"x1.75,rubber16.Chaincover:PVC17.Brake:Coaster brake18.Kickstand:Steel ...