Specifications Product nameRear Hydraulic Disc BrakeModelM4ColorBlackMaterialAluminum alloyWeightAbout 647g pairOil pipeFront oil pipe length 800mm rear oil pipe length 1400mmApplicable160mm discFeatures Left brake lever fit for 22 2mm handlebar Hydraulic 4 piston and two way brake prolong the life of rotor Integrated brake lever and oil tube prevent oil leak Suitable for most mountain bikes Package Included Type A1 Pair x Front and rear brakes4 x ScrewType B1 Pair x Front and rear brakes4 x Screw1 x 60MM discsType C1 x Right front brake 800MM2 x ScrewType D1 x Left rear brake 1400MM2 x ScrewType E1 x Right front brake1 x 160M discs2 x Long Screw6 x Short ScrewType F1 x Left front brake1 x 160M discs2 x Long Screw6 x Short Screw