Components:DerailleursType:Front DerailleurMaterial:AlloyGears:21 SpeedTotal Capacity :42T cranksetBrand Name:microshiftModel Number:TS70-7 FD-M20 RD-M25Packing include : TS70-7 split dip + FD-M20front derailleur+ RD-M25rear derailleur. suit for 42T cranksetPackaging DetailsUnit Type:pairPackage Weight:0.8kgPackage Size:30cm x 20cm x 10cm