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.
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.
by SBF Staff
January 26, 2021
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
1 min to read
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
Fullbay Report: Heavy-Duty Shop Revenue Up, Rates Rising, but Shops Still Short on Techs
Strong growth across the heavy-duty repair sector is being tempered by workforce shortages and an aging technician pipeline.
Read More →
How Mack Sees the Next Era of Fleet Intelligence
Telematics has evolved from simple vehicle tracking into a connected service platform that can help fleets boost uptime, improve specifications, and move toward predictive maintenance. Mack executives say AI is now giving fleets a way to turn all that vehicle data into faster, smarter decisions.
Read More →
Clarios Expands Battery Monitoring Into Subscription Service with Battery Manager Pro
A new battery-monitoring-as-a-service program from Clarios Connected Services uses predictive analytics and automatic replacement to reduce downtime and smooth fleet maintenance costs.
Read More →
SAF-Holland’s BrakeSight Aims to Take the Guesswork Out of Air Disc Brake Maintenance
New Haldex sensor technology from SAF-Holland integrates with telematics systems to give fleets continuous insight into air disc brake condition.
Read More →
Vanair Introduces Solar, Battery Power Ecosystem for Class 8 Trucks
The company’s expanded EPEQ ecosystem includes flexible solar panels, lithium batteries, hydraulic power systems, and a portable fast charger for electric trucks.
Read More →
Mitchell 1 Targets Technician Search Challenges With New Fleet Feature
TruckSeries’ new Unit Number Search allows fleet technicians to access repair data using the identifier they know best — the truck’s unit number.
Read More →
Truck Maintenance Costs Ease Slightly, but Long-Term Trend Still Rising
Benchmark data from Decisiv and TMC shows repair expenses still climbing, but fleets are improving efficiency with digital tools.
Read More →
New PC-12 Diesel Engine Oil Category Nears Completion: What Fleets Should Know
The new heavy-duty engine oil category, PC-12, is nearing the finish line. Here’s what fleet maintenance managers should know before it arrives in 2027.
Read More →
Sponsored•March 9, 2026
Advanced Commercial Vehicle Diagnostic Strategies
Learn how to diagnose complex electrical and drivability issues with confidence using the Autel MS909CV, a digital storage oscilloscope, and real-world engine data in this hands-on virtual introduction to advanced commercial vehicle diagnostics.
Read More →
Smarter Maintenance Strategies to Keep Trucks Rolling
In today’s cost-conscious market, fleets are finding new ways to get more value from every truck on the road. See how smarter maintenance strategies can boost uptime, control costs and drive stronger long-term returns.
Read More →