Frame: Steel,TIG welded 26" MTB frame, suspension Fork: Steel,TIG welded 26" MTB fork Handlebar: steel, MTB handle bar Brake Sets: F/R: steel, V-brake Saddle: MTB saddle Crank Sets: 3pcs w/steel crank 170mm, black guard Rim: 26"*1.95 rubber black Front & rear Hub: F/R: steel,14G*36H Tire: 26"*1.95 rubber black Gear set 6pcs freewheel 18speed F/R Derailleur F:Sunchi steel,long foot,pull below R:DF 6speed, steel