- Intended use is pedal assist E-MTB - 4-piston forged caliper with 4 -16mm ceramic/steel hybrid pistons. Top-loading pad design - E2.3 rotor is required (2.3mm thickness) - Aaron Gwin designed alloy lever blade - Tool-free indexed reach adjustment - EZ-Plug system: pre-bled and plugged at both ends of the 5.0 x 1900mm hose (F & R); extra olive and barb included - Sintered Metallic brake pads included - Rotor and adapter sold separately - Levers are I-Spec II compatible with no adapter - Matchmaker adapters are sold separately - All TRP hydraulic brakes use mineral oil