All our X-Line 4WD rotors feature a proprietary black surface coating. Before applying this coating, the rotors undergo chemical de-greasing to ensure the absence of machining fluids or contaminants that could negatively impact brake performance. The coating exhibits exceptional heat resistance and flexibility, preventing flaking or peeling during the rotor’s thermal expansion and contraction cycles.

Our X-Line 4WD rotors require no solvent-based cleaning or preparation. Simply make sure the car’s hub is clean and install the rotors as they come out of the box. The brake pads will remove the black coating in the pad track areas within the first 4-5 brake applications, while the un-swept areas of the rotor will retain the coating. Although the primary purpose of our rotor coating is to eliminate oils and contaminants during fitting (rather than providing corrosion protection), practical experience has shown that the non-swept areas of our coated X-Line 4WD rotors effectively resist unsightly surface rust formation, depending on environmental conditions. This results in a visually appealing appearance visible through the truck’s wheels and the perfect upgraded performance brake kits.

Rotor Maximum Temperature Recording (MTR) System

All our rotors feature our MTR system that provides a permanent record of the peak operating temperature reached by the rotor. This information is extremely valuable for understanding what is happening in your brake system. The thermal-paint tabs are applied to the outside diameter of the rotors (on both the inboard and outboard rotor plates). Each single-change paint color will change to white when a specific temperature is reached, hereby providing a record of the peak operating temperature of the rotor.

• Blue paint changes color at 527 deg F
• Green paint changes color at 860 deg F
• Orange paint changes color at 1022 deg F
• Pink paint changes color at 1166 deg F

At Powerbrake, we firmly believe in the advantages of machining our multi-piston calipers from solid billet. All our calipers are precision-machined using high-grade aerospace aluminum billets. Although machining from billet is an expensive manufacturing method, it yields a final product with exceptional strength and rigidity.

How do we offer our billet X-Line 4WD calipers at competitive prices? We achieve this through substantial investments in cutting-edge 5-axis CNC production equipment, ensuring maximum efficiency in caliper machining. The combination of machining from billet and the caliper designs enhanced through Finite Element Analysis (FEA) results in calipers with an impressive rigidity-to-size ratio. The slender profile of the calipers reduces unsprung weight and enhances wheel clearance.

Caliper Surface Finish

Our X-Line 4WD calipers are offered in two finish options: Red anodize (type-2) or Dark Gray hard anodize (type-3). The anodize dyes chosen for our Red finish provide excellent UV and temperature resistance, ensuring long-term color retention. The Dark Gray hard anodize is our most resilient finish.