1.quality assurance 2.competive price 3.healthy and comfortable 4.specific style 5.hot sale Specification:Frame: hi-ten frame, tig welding, 700C * 52mm/55mm/59mm/61mmfork: hi-ten steel, shrinked 19mmhead parts: steel, 8 pcs, 22.2*25.4*27mmB.B. parts: steel cup, 5 pcs, 3P axleHandle bar: steel, MTB type bar, 500mm*30mmstem: alloy, 22.2*150mm, minus 10 degreeBrake lever: alloy, left hand, 2 fingers ...