TRP - Trail EVO E2.3 - HD-E843 - RHBorn from technology proven in World Cup DH and tuned for the demands of Trail bikes and E-MTB’s the Trail EVO takes modulation and braking power to an entirely new level of control.New ergonomic lever-blade newly formulated brake pad compounds new high-performance hydraulic oil new 5 mm brake hose-system newly designed and CNC-machined adapters new selection of 2.3 rotors newly designed oil flow inside the calipers and a 10mm master cylinder piston lift the overall performance of the Trail EVO to this new standard of performance.NB: Specifically designed to be used with our 2.3 MM THICK R1 ROTORSPlease Note: System comes pre-bled lever detached. For EZ-Plugin Disc Hose Installation Guide CLICK HERE.