17" alloy frame 26" wheel factory price 5000pcs production capacity per month PARTSMaterialSPECframecromoly ... steel,64pcs, 13G, with steel nippletire 700C*25Ctube 700C*25C, butyl, with presta valveO.B PVC, 700C*16MMsaddle performance saddle, with rail, with ... a limited warranty of the following items:1. The main frame 3 years2. Gears, bearings, forks 2 years3. Handle bar 1 ...