Polished - CNC machined billet aluminum - For 5/8" (15.88mm) axle - For use with 10" brake rotor - Bracket is floating axle mounted - Bracket comes complete with the required center span to install the 125x2 2-piston caliper - Included center span comes with a brake anchor hole - See fmc-952-908 for a center span only, without brake ancher hole (available in chrome only) - Designed for custom left & right use on custom Springer forks