Marathon Introduces New Air Disc Brake Rotors
Marathon's DiscStar air disc brake rotors feature an optimized venting design and maximized heat sink to further enhance thermal resistance properties.

The new line of DiscStar air disc brake rotors from Marathon Brake Systems are designed for a variety of heavy-duty applications, including on-highway trucks and trailers, motorcoaches, transit buses, and school buses.
Photo courtesy Marathon Brake Systems
Marathon Brake Systems has developed a complete line of DiscStar air disc brake rotors for a variety of heavy-duty applications, including on-highway trucks and trailers, motorcoaches, transit buses, and school buses.
The DiscStar air disc brake rotors are manufactured to OE thickness specifications to resist warping and cracking issues caused by high temperature applications, according to a news release from the company. The rotors also feature an optimized venting design and maximized heat sink to further enhance thermal resistance properties.
Engineered to ECE R90 European standards, the DiscStar rotors are manufactured in an ISO-certified plant and are geometrically tested for design, metallurgical composition, hardness, and balance. The rotors also undergo a thermal integrity test at high loads. When used in combination with Marathon's DiscStar air disc pads, the rotors can reportedly provide smooth stopping and a longer service life to lower a fleet's maintenance costs.
Originally posted on School Bus Fleet
More Maintenance

Will API PC-12 Oil Change Trucking Fleet Maintenance?
The new API PC-12 heavy-duty engine oil category reflects the changing demands of modern diesel engines. But fleets like Foodliner are looking to getting their own data before making decisions on adopting the new oils and questions such as extending oil drain intervals.
Read More →
Brake Safety Week to Focus on Drums and Rotors
Commercial vehicle inspectors will be focusing on brakes during CVSA's Brake Safety Week, August 23-29.
Read More →
Possible Battery-Cable Fires Prompt Recall of 15,000+ International MV and HV Trucks
On the recalled vehicles, manufacturing variations can cause the battery interconnect cable to contact the auxiliary stud and hold down the bracket.
Read More →
Rush, MCT Team Up to Grow Refrigeration Service Network
The joint venture will operate MCT's network of Carrier Transicold dealerships and mobile service locations, with the companies promising greater service capacity and uptime for refrigerated fleets.
Read More →
ConMet Expands Aftermarket Brake Drum Lineup With TruCast
A new heavy-duty truck brake drum option in the aftermarket gives customers more flexibility within the ConMet product family.
Read More →
Mack Expands Premium Service Contract Coverage to Medium-Duty MD
With a service contract, inspections, preventive maintenance and repairs can be handled in a single visit instead of multiple ones.
Read More →
Maintenance in the Messy Middle Part 5: Battery-Electric Trucks
No oil changes. No diesel exhaust fluid. No exhaust aftertreatment. But NACFE battery-electric trucks still require specialized maintenance procedures.
Read More →
Trucking Fleets Faced Record Operating Costs During Third Year of Freight Recession
ATRI's annual operational cost report shows carriers trimmed fleets, delayed equipment purchases, and ran older trucks as expenses continued to outpace freight rates.
Read More →
Noregon Launches CAN Mentor to Simplify Vehicle Network Diagnostics
New Noregon software helps technicians identify CAN network issues without requiring advanced diagnostic equipment or specialized training.
Read More →
Maintenance in the Messy Middle Part 4: Renewable Natural Gas
The keys to running renewable natural gas as a fleet fuel depend on specialized technician training, rigorous inspection schedules and an understanding of high-pressure fuel systems.
Read More →
