Product Description Specifications:Application:Road, Gravel, CyclocrossType:hydraulic, 4 pistonsActuation:DOT 4, DOT 5.1Technical Information:Mount:flat mountPistons:4Design:1-pieceMaterial:aluminium (2014 T6)Compatibility:SRAM Red eTap AXSSRAM RedSRAM Force eTap AXSSRAM ForceSRAM RivalSRAM ApexSRAM S900Features:hydraulic brake caliper for drop bars with flat mount attachmentfor 160 mm brake rotors with 140/160 mm mounts or 180 mm with 160/180 mm mounts without additional adapter4-piston design for precise braking efficiencyexcellent stiffness thanks to 1-piece constructionCNC machinedimproved hose connectionbrake pad sets for road or cyclocross and gravel Note: To find out which RX4+ brake caliper fits your bike and which disc brake adapter you may need, we recommend that you consult the Hope Brake Caliper Diagram. Manufacturer Numbers:Front:HBSPC72NRear:HBSPC74NContents:Front: 1 x front wheel1 x pair Hope blue brake pads for road1 x pair Hope red brake pads for cyclocross / gravel2 x bolts1 x R-clip2 x washers1 x pad retaining bolts1 x spring1 x olives1 x inserts1 x compression hose nut1 x copper washer1 x syringes1 x hose with adapter2 x bleed blocks rear: 1 x rear wheel1 x pair Hope blue brake pads for road1 x pair Hope red brake pads for cyclocross / gravel2 x bolts1 x R-clip6 x washers1 x pad retaining bolts1 x spring1 x olives1 x inserts1 x compression hose nut1 x copper washer1 x syringes1 x hose with adapter2 x bleed blocks Manufacturer: Hope Mill Calf Hall Road Barnoldswick Lancashire BB18 5PX United Kingdom info@hopetech.com Distributor: bc GmbH Carlo-Schmid-Straße 12 52146 Würselen Germany info@bike-components.de