Technical Blog

Brake failure on a commercial vehicle is not just costly — it can be catastrophic. Knowing the early warning signs allows fleet managers and technicians to intervene before a minor issue becomes a major liability.

Federal Motor Vehicle Safety Standard 121 governs air brake performance for commercial vehicles in the United States. Non-compliance can result in out-of-service orders, fines, and significant liability exposure. This guide breaks down what fleet managers need to know.

If your fleet is pulling calipers at 60,000 miles instead of 150,000, the caliper is not the problem — it is the symptom. After 50 years of remanufacturing heavy-duty brake calipers for transit agencies, Fraser Gauge has mapped the failure patterns precisely.

The line item on a deferred maintenance decision is never the full cost. For transit agencies and commercial fleets, the real price of postponing brake work shows up in unscheduled downtime, regulatory penalties, and liability exposure that dwarf the original repair estimate.

If your fleet operates in California or Washington State — or purchases brake friction materials for vehicles that travel through either state — you are already subject to the Better Brake Law. Phase 2 enforcement is active. Here is what that means for your procurement process.