Hope XCR Pro E4 Brake The Hope XCR Pro E4 Brake is designed to meet the needs of downcountry riders, with a blend of power and weight savings with a lightweight design, perfect for demanding descents and grueling climbs. This brake uses the four-piston E4 caliper, CNC machined out of a single piece of aluminum billet, resulting in an ultra-rigid caliper body for more responsive braking. This caliper is paired with the XCR Pro Lever, featuring a carbon fiber lever blade and titanium hardware, with a 10% power increase over the Race Evo lever. The easily-accessible lever reach, allows riders to quickly customize the brake reach to suit their needs, while maintaining a sleek lever design. The Hope XCR Pro E4 Brake hits the sweet spot between cross-country race machines and fast trail rippers, with powerful braking to handle the descents and a lightweight design for the uphill slogs needed to get there. Features XCR Pro lever with a carbon fiber blade, titanium hardware, and a 10% power increase over the Race Evo lever E4 caliper is CNC machined from a single piece of aluminum billet, with a hybrid stainless steel four-piston design, and a phenolic insert for temperature management Lever reach adjustment makes lever customization a breeze Race compound brake pads for impressive braking power with reduced fade Specifications Lever Material Carbon Fiber Caliper Material CNC Aluminum Adjustable Lever Reach Yes Fluid Type DOT 5. 1 Brake Fluid Number of Pistons4Rotor Included No Weight N/A | Hope Technology | Xcr Pro E4 Disc Brake | Black | Left