alpha Racing DDC Front Suspension Sensor Kit BMW S1000RR, HP4 (2012-, 2015-), easy Plug & Play into OEM loom, with suspension sensor 150mm, billet aluminum bracket with HP4 logo, steering stops, and installation instructions. Note: Optional for STANDARD 2010-2013 BMW S1000RR in combination with interface module and harness (7470A109A00-01 and 7470A109A01-01). Allows the HP4 and 2015- BMW S1000RR's DDC Electronic Suspension ECU to attain real-time front fork travel information + information from rear Bosch ride height level sensor (located at rear shock) for best Dynamic Damping Control modulation of the EDM system in the DDC Fork. We refer to the OEM DDC System as Semi-Active because the DDC ECU is using ONLY the rear ride height sensor (no input from front fork), and we refer to a DDC suspension with the Front Sensor installed as Fully-Active because the DDC ECU is actively receiving information from the front and rear of the S1000RR. This allows for precise control of the DDC EDM valving that can make better decisions in modulating.