Hybrid Rotor Upgrade: Designed for racers running Pinto spindles who want to replace heavy Granada rotors with lightweight 10-inch hybrid rotors IMCA Approved Design: Includes two IMCA-approved vented hybrid rotors with a 5 on 5-inch bolt pattern for sanctioned dirt track applications Complete Front Kit: Kit includes LH and RH hybrid caliper brackets, mounting hardware, wheel bearings, seals, and dust caps for a full front conversion Reuse Existing Components: Engineered to work with existing metric calipers, allowing a cost-effective front brake system upgrade Track-Focused Application: Intended for dirt circle track racing only, providing reduced rotating mass and improved performance over stock rotors This kit is for you guys already running Pinto spindles but want to swap out your heavy Granada rotors for the lighter Hybrids. Re-use your metric calipers. 5 x 5" bolt pattern. Two new IMCA approved 10" hybrid rotors. Left hand and right hand hybrid caliper brackets. Hardware. Four new wheel bearings. Two seals. Two new dust caps. This brake kit is designed for dirt circle track applications only. It is not to be used for asphalt, pavement, or drag racing applications.