What Is the FMVSS-121 (Federal Motor Vehicle Safety Standards)?

What Is the FMVSS-121 (Federal Motor Vehicle Safety Standards)?

The Federal Motor Vehicle Safety Standard (FMVSS) 121 specifies requirements for air brake systems on trucks, buses, and trailers. It was established by the National Highway Traffic Safety Administration (NHTSA) under the authority of the National Traffic and Motor Vehicle Safety Act. The purpose of FMVSS 121 is to ensure safe braking performance and stability…

Ventilated Brake Rotors: Meaning, Benefits, Lifespan

Ventilated Brake Rotors: Meaning, Benefits, Lifespan

What Are Ventilated Brake Rotors? Ventilated brake rotors, also known as vented brake rotors or cross-drilled rotors, are a type of disc brake rotor designed with holes or vents between the two braking surfaces. The purpose of these vents is to allow air to flow through and cool the rotor during braking. This helps prevent…

Brake Rotors: Definition, Function, Location

Brake Rotors: Definition, Function, Location

What Are Brake Rotors? Brake rotors, also known as brake discs, are circular metal plates that are attached to the wheel hubs of a vehicle (https://nubrakes.com/blog/what-are-brake-rotors-and-how-do-they-work/). The main purpose of brake rotors is to provide a friction surface for the brake pads to press against, which slows the wheels and stops the vehicle. When the…

Slotted Brake Rotors: Meaning, Benefits, Lifespan

Slotted Brake Rotors: Meaning, Benefits, Lifespan

Slotted brake rotors refer to rotors that have vertical slots or grooves cut into the surface of the braking area. The purpose of these slots is to help expel gas, dust, and water away from the rotor surface more quickly (https://www.autonationmobileservice.com/i/blog/drilled-and-slotted-rotors/). This improves braking performance in wet conditions and prevents the brake pads from getting…

Cryo-Treated Brake Rotors: Meaning, Process, Benefits

Cryo-Treated Brake Rotors: Meaning, Process, Benefits

Cryo-treating, or cryogenic processing, is a method of freezing brake rotors to extreme subzero temperatures to alter their metallurgical properties and improve performance. The process exposes the rotors to cold temperatures as low as -300°F for up to 24 hours. This extreme cold induces changes at the molecular level that transform the metal into a…

Bad Brake Rotors: Symptoms, Appearance, Sound & More

Bad Brake Rotors: Symptoms, Appearance, Sound & More

Brake rotors, also known as brake discs, are circular metal plates attached to the wheel hub that provide a friction surface for the brake pads to create stopping power and slow the vehicle down. When you apply the brakes, hydraulic pressure pushes the brake pads against the rotor. The interaction between the pads and rotor…