1. Every parts is famous brand. 2. Shimano derailleur 3. Competitive price 4. Pass the whole test report

1. Carbon steel frame   2.steel fork                         3.mtb disc brake hub      4.compass mtb tyre                5.SHIMANO-TX30 controller   6.SunRUN front derailleur SunRun rear derailleur    7.Condit pulley                        8. Jingyuanda anti-slid pedal 9.Boli disc brake           10.aluminum handlebar and stem                                        11.TEC chain