Marathon Brake System's air disc brake calipers and chambersare designed to meet the needs of a wide range of aftermarket air disc brake applications, from on-highway trucks and trailers to fire trucks and waste haulers. The calipers and chambers complement Marathon's air disc pads and rotors, and the company says they maximize product life, reduce noise, and lower maintenance costs. The calipers cover a variety of mounts, from Western Star to Meritor, while the air disc chambers include both complete springbrakes or type 18 or 20 ADB service chambers.