PM, 4-p 137x4B caliper. Bolt-on, 11.5" left front. Black CC - 84-99 B.T., XL (excl. all Springers. All FXR, Dyna and XLH with wire wheels) (NU) 978409 100% machined from high performance

100% machined from high performance nickel bronze alloy

Forged billet aluminum backing plate features patented Big Sucker™ hidden breather technology and a radius air inlet for smooth airflow

12" wide x 5" high

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PM, 4-p 137x4B caliper. Bolt-on, 11.5" left front. Black CC - 84-99 B.T., XL (excl. all Springers. All FXR, Dyna and XLH with wire wheels) (NU) 978409 100% machined from high performanceBlack anodized with a Contrast Cut machined finish CNC machined billet aluminum Direct bolt on to the front fork, no brackets required Designed for 11. 5" brake rotors ABS and Non ABS compatible 137x4B 4 piston differential 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