This 16mm. axial master cylinder is an excellent improved alternative for all Buell with a single disc. It includes brake light switch and mirror support.

for all XB 6 piston ( ZTL 1 ) brake systems and tube frame models 

look here for fitting banjo Bolts

and crush sealing rings 2 x needed

Buell Parts
Buell onderdelen
pièces buell
أجزاء بويل
Buell teile
ビューエルパーツ
Partes buell
Buell части