SPECS: FRAME: 20''*286MM STEEL 34*100MM TOP TUBE:44.5MM BOTTOM TUBE:50.8MM MIDDLE TUBE:28.6MM V-BRAK W=112MM BIG BB SHELL FORK:20'' *25.4*28.6*164MM THREADLESS W/PIVOT HEAD PARTS:1-1/8''*34*30 H:22MM BB PARTS: 9PCS FOR BIG BB SHELL SADDLE:BK RAIL AND CLAMP DOUBLE LAYER BK PRINTING SKYJUMP SEAT POST:STEEL 25.4*1.8*425MM REDUCED OPEN BENT TYPE SEAT POST CLAMP:ALLOY FOR DIA 28.6MM FORGED FRONT HUB: ALLOY 3/8''*100*165*48H*14G W/safety catch and flange nut straight pipe REAR HUB:ALLOY 3/8''*110*175*48H*14G W/ flange nut straight pipe SPOKE: F: 184MM *48pcs 45# 14G STEEL NIPPLE R:183MM *48pcs 45# 14G STEEL NIPPLE RIM:ALLOY 20''1.75*48H*14G TYRE:20''*1.95 BK TUBE:20''*1.95 A/V CHAINWHEEL:1/2*1/8*44T CRANK:STEEL L:165MM ONE PIECE TYPE PEDAL:ALLOY 1/2'' W/BALL W/TPP REFLECTOR CHIANCOVER: FOR 44T CHIANWHEEL CHAIN:1/8''*1/2''*90PCS FREEWHEEL:1/2''*1/8''*16T FREE WHEEL HANDLEBAR:STEEL 640*22.2*1.4MM RISE:200MM STEM: ALLOY FORGED 28.6MM EXT:50MM H:30MM GRIP:TPR L/R:22.2*122MM SIDES RED MIDDLE BK BRAKE:ALLOY BRAKE PAD: 55MM L:110MM STRAIGHT LINE SPRING W/90 DEGREE BENT PIPE, DUST-PROOF COVER BRAKE LEVER: SILVER LEVER W/ADJUSTBALE SCREW BK BASE/SILVER LEVER BRAKE CABLE:F:800*1050MM 2P ROTATOR: STEEL CP 1-1/8'' 360 DEGREE ROTATION STEP AXLE: 4PCS 26T*3/8'' 38*110MM BELL:DIA:22.2MM STEEL BK COVER BK BASE LIGHT: FRENCH NORM FRONT+REAR LIGHT W/REFLECTOR W/ BATTERY LIGHT BRACKET: FRONT FOR BHB-88 DIA22.2; REAR FOR SPB-11A+SPB-11B DIA25.4 WHEEL REFLECTOR: YELLOW TPL STANDARD 2PCS CARTON: 98% PACKING 5 LAYERS STICKER: AS PER ORDER