The latest option part for the Schumacher CAT K1 is the FAB (Front Adjustable Braking) system. The FAB system allows you to adjust the amount of braking to the front wheels via the pressure pads controlled by tightening the external side nut. Fully tight the car operates full-time four-wheel braking (as per standard kit specification), fully backed off acts like a one-way layshaft. Adjustment allows proportional control of front braking allowing you to tune the cars handling to all circuits and driving styles.
U4133 Schumacher FAB Front Adjustable Brake Set – CAT K1
Source: Schumacher