Protex Ultra Select Disc Rotor SDR12947 Ultra-Ceramic They are electronic devices used

They are electronic devices used to indicate how much material is left before disc pad replacement is required

this product can be used straight from the box

Anti drain-back valve preventing oil draining back out of the filter through the inlet holes

Disc pad wear sensors are an advanced safety feature on many late model vehicles

while the multi-layered metal shim includes an additional adhesive lever to minimise vibration and prevent brake noise

Protex Ultra Select Disc Rotor SDR12947 Ultra-Ceramic They are electronic devices usedThe Protex Ultra Select range of disc rotors caters for a wide range of specialty vehicles, including performance and classic vehicles. Available in a variety of finishes and specifications, including drilled and slotted, in both standard and high carbon materials, this range tailors for those hard to find and less common applications.