Kelsey Hayes Style Rear Brake Master Cylinder with 5/8in. Bore - Chrome. Fits FX 1980-1983, FXWG 1980-1982 & Sportster 1980-1981.

USA MADE!

* 5/8" bore for multi-piston caliper

* Use 26248 3/4" bore for OEM single piston caliper

* Rebuild kit BDL-GMA-MRCB1

Brake Line Options:

1. Brake olive can be removed from the existing master cylinder & refitted to new master cylinder which then requires 3/8" UNF flare nut fitting PAI-284 and re-use the factory brake line

2. Use 10mm banjo bolt PAI-109, 10mm banjo & universal brake line