Brackets are not available and must be custom fabricated so this caliper will virtually fit all custom applications. Note: when used with 21" rims and some replacement 19" rims; the brake disc may need to be be spaced out for the brake caliper to clear the spokes. - Chrome - CNC machined billet aluminum - Mounting brackets separately available; see catalog - Designed for 11.5" brake rotors - ABS and Non-ABS compatible - 125x4S - 4-piston equal bore- Proudly machined with the PM icon logo - Designed to slow down fast; without flexing. Performance Machine has been in the forefront of brake caliper design; ever since 1982. Each caliper and bracket is precision CNC machined from billet aluminum to a high-end performance product that combines lightweight; flex resistance and durability with a hard to beat styling. Available in various coatings to suit your taste.