Trinx MTB Mens Mountain Bike 26 inch Shimano 21-Speed M136Frame:Frame: 26" x 19"Alloy Special-shaped TubesFork: Trinx Steel Suspension Travel 100mmComponents:Pedal: Wellgo SportSaddle: Trinx SportHandlebar: Trinx Hi-Ten Steel Oversize FlatDrivetrain:Shifter Lever: Shimano ST-EF65Front Derailleur: Shimano FD-TZ30Rear Derailleur: Shimano RD-TZ50Cassette: Shimano MF-TZ21 14-28TChain: KMC C50Chainwheel: Trinx 24/34/42T*170LBreak: Trinx Alloy Mechanical DiscWheels:Hub: Trinx Sealed BearingRim: Trinx Alloy Double WallTire: Cst 26"*1.95"