The industry standard cable-actuated disc brake since its introduction is still popular due to smooth ball bearing operation and ease of installation and maintenance. All calipers have 74mm mounting bolt spacing. For use with with long cable-pull levers. Due to the shape of the brake pad installation tabs, this model is not compatible with Centerlock or HSX rotors. Pad retraction and spring tension are adjustable. Includes steel-backed sintered pads. Rotor/Bracket Sold Separately.