17" alloy frame 26" wheel factory price 5000pcs production capacity per month ... /T 28.60mm, D/T 28.60mm, seat tube: 29.1*520MM,forkcromoly 4130cromoly, threadless steer tube, 28.60mm handle ... , 25.40*300mm, with a-headseat pin alloy, ID: 29.0, one boltPedal alloy, pedal, axle 9/16", with ... a limited warranty of the following items:1. The main frame 3 years2. Gears, bearings, forks 2 years3. Handle bar ...