Gears Geared Frame 29", 21 Speed, Hardtail MTB, 6061 Alloy Bottom Bracket BB Cartridge-Sealed Bearing-Cold Forged Boron Axle, Plastic cups, Steel Body Chain KMC-Z7-1/2"x 3/32"x 112 Links Front Derailleur SHIMANO-AFDTY500TSM6-Top-Swing, Dual-Pull,For Rear 6/7-Speed,Band Type (W/31.8mm Adapter), CS Angle: 66-69, For 42T, CL: 47.5/50mm Rear Derailleur Shimano-ARDTY500D-6/7 Speed, Direct attachment Rims 29"x1.75", H-25mm, 14Gx36H, Alloy Double wall, With Safety line Tires Kenda-K-1162-29"x 2.1"(54-559), W/Reflective Side Walls Pedals Neco-WP-163-114x85mm, Full Plastic, 9/16 BSWX20TPI - with ISO Reflector, with steel balls Brakes Front - Disc brake - 160 mm - Alloy Rear - Disc brake - 160 mm - Alloy Brake Levers Shimano-Integrated-Integrated with L-R shifter Handlebar Steel, 680mm Length , 31.8mm Dia, 9° - 10° sweep, Rise - 30mm Stem Fork Column Dia 28.58mm - Handle Bar Dia 31.8mm -Extension - 80mm - Rise - 10 deg, Height - 41mm Headset NECO-H117DM-28.58 Dia, Semi-Integrated Threadless, 44 X 30-Caged Bearing(5/32" x 22 x 2pcs) with Top Cap Grips TPE / SOFT PVC , 22.2mm Dia x 130mm Length, Closed end, Single Pattern Saddle 275X150mm-PP Base, High density Foam, PU Cover, Black Steel Rail Seat Post 27.2mm Dia, 300 mm length, Single Bolt, with minimum insertion mark - 65mm Fork ZOOM-MLO 389 - 29''-Suspension fork, 60mm travel, with mechanical lockout Left Shifter Shimano-ST-EF500-L2A-Shifter / Brake levers, 3 Speed-Alloy-Black-2 Finger-CL 1800-EZ Fire Plus Right Shifter Shimano-ST-EF500-7R2A-Shifter / Brake levers, 7 Speed-Alloy-Black-2 Finger-CL 2050-EZ Fire Plus Chainwheel & Crank 1/2*3/32*24T*34T*42T*170*9/16SQUARE HOLE，STEEL ED RINGS,PLASTIC COATED CRANK,BLACK 4 OR 5-ARMS，BLACK COVER Free Wheel/Cassette Sprocket Shimano-AMFTZ5007428-TZ500-7, 7 Speed-14-16-18-20-22-24-28T - Straw Yellow & Black 28T Rear Hub Shunfeng-SF-HB25R-7 Speed, Threaded type, 14Gx36H, M10x135x145mm, QR type, -6 Bolt-For Disc Brake Front Hub Shunfeng-SF-HB25F-14Gx36H, M9x100x108mm, QR type, 6 Bolt-For Disc Brake Sizes 17.5"|19"