The wireless FSA K-Force WE Disc Brakelever/Shifters inclusive Flat Mount disc brake calipers is a control for the high end, electronic FSA roadbike drivetrain featuring the benefit of a powerful disc brake.

K-Force WE Disc Shifter

The disc brake version also features a compact, ergonomically shaped lever body and an outwardly flared carbon brake lever. This is achieved thanks to a compact master cylinder combined with a roller actuator lever design for minimum operating forces. The guide of the piston consists of Delrin™ for minimum friction. The reach of the brake lever is adjustable. The lever pivot is supported by oversized bushings which are secured with a stainless steel pin. The hydraulic system can be easily bleeded or filled at the bleed port of the reservoir at the top of the lever.
. A three-layer hydraulic hose additionally increases durability and strength.
The WE shifter has a rocker switch outside and behind the brake lever. The top half is effectively one button; the lower half another button. Ex factory the top button moved the chain onto a larger cog or ring and the lower button did the opposite.
Thanks to ANT+ or Bluetooth wireless technology, the shifters communicate with the derailleurs and optionally with bicycle computers or smartphone (not included) without any cables and allows an easy mounting and adjustment.