Caliper BNDLR 1.38in x .810 Rotor Hard Ano.

The Wilwood Caliper BNDLR 1.38in x .810 Rotor Hard Anodized brake caliper is a narrow Dynalite four-piston aluminum unit engineered for high-performance braking systems where space and weight are critical constraints. Designed to work with 0.810-inch thick rotors up to 12.720 inches in outside diameter, this hard anodized caliper delivers the stopping power required for precision driving environments—from autocross and road racing to track days and serious driving applications.

This Wilwood caliper features aluminum construction with hard anodized gray finish, providing corrosion resistance and durability in demanding conditions. The four-piston design distributes clamping force evenly across the rotor, ensuring consistent bite and predictable modulation during heavy braking events. The 4.75-inch radial mount configuration allows integration into a variety of brake system layouts, making it compatible with custom builds and performance-oriented platforms. Each unit weighs 3.76 pounds and ships ready for installation.

Drivers selecting a Wilwood Dynalite narrow caliper prioritize lightweight, responsive braking without sacrificing stopping capability. This caliper suits track-focused vehicles, street performance builds, and applications where unsprung weight reduction directly impacts acceleration, handling, and fuel economy. The 0.810-inch rotor thickness strikes a balance between thermal mass for fade resistance and overall system weight, while the narrow profile fits tight wheel and suspension packages where oversized calipers won't clear.

Wilwood has established itself as a leader in high-performance brake systems for motorsports and serious enthusiasts. The hard anodized finish on this Dynalite caliper resists salt spray, moisture, and brake fluid degradation—factors that matter for both track and all-weather street use. Proper brake fluid selection, rotor compatibility, and brake line sizing remain essential for safe, reliable operation.