Frame: HARDTAIL ALLOY FRAME Crankset: GOLDEN SWALLOW 24X34X42T Brake: POWER DISC BRAKE Fork: SUSPENSION FORK Front derailleur: SUNRUN FOR 42T Handlebar: ALLOY HANDLEBAR Tire: KENDA 27.5”*1.95 TIRE Rear derailleur: SHIMANO ALTUS Stem: ALLOY STEM Rim: XDS DOUBLE WALL ALLOY RIMS Shifter: SHIMANO ALTUS Seat post: ALLOY SEAT POST Hub: XIMAI STEEL HUB Freewheel: SUNRUN 13-28T Size : 13”;15“;17”;19”