17" alloy frame 26" wheel factory price 5000pcs production capacity per month PARTSMaterialSPECframecromoly 4130cromoly ... bar, 390mm*22.20mm, core: 25.40mmstemalloyforged, 4 bolts, 4 bolt, ext.30mmgrip nillhead parts 10pcs, threadless parts, alloy capwasher alloy ... Front and rear axle, flywheel or chain wheel 1 year6. Electro plating, on wheel rims, rack and kickstand 6 monthsCompany Advantages1,Top ...