OEM two-piston brake assembly for Super73 electric bikes, manufactured by Star Union as an original equipment component for Super73. Available in front or rear brake configurations, with each option featuring the correct brake line length and brake lever style for its mounting position. This brake assembly comes standard on the S2 Laguna, base Z-Series models, and MZFT, and is compatible with all Super73 vehicles. Please select the correct front or rear version before ordering.