Mountain Bike parts: 1.ISO9001 Certificate 2.European EN Certificate 3.Chinese ... ,moutain bicycle,city bicycle. and parts of bicycle and mountain bike such as:chain-wheel and crank,bicycle saddle,middle axle ... and tube,mudguard,side stand,chain adjuster,steel ball,pedal,front fork. bicycle freewheel 1.we can produce different freewheel for different ... .50pcs/ctn,44*21*17.5cm,G.W.:23.5kgs MTB freewheel-5