Wilwood 120-14765 SI Billet Narrow Dynalite 4-Piston Universal Radial Brake Caliper

Billet Narrow Dynalite Radial Mount Brake Caliper

Wilwood’s prestigious DynaLite calipers are used in every form of racing, and the latest Billet Narrow Dynalite Radial Mount (NDLR) series is better than ever. Starting at a mere 3.20 pounds (1.45kg), this compact, lightweight caliper now features a stiffer radial mount design. Engineered with a spacer-less body specifically for .38", .810", and 1.00" wide rotors, and a central bridge bolt that adds to the caliper's overall strength and top-load pad retention. A durable Mil-Spec Type III (hard ceramic) oxide aluminum hard-anodized finish further enhances caliper durability by resisting bore wear and surface abrasion.

Billet NDLR calipers can be mounted directly on studs with a 4.75” center spread, or used with a radial mount bracket kit in place of a lug mount caliper.

Internal dampening springs, internal fluid crossover, controlled retraction internal seals, and 3/8” cross bolts for added strength and stiffness all combine to deliver consistent pedal feel from beginning to end. It uses 7816 type brake pads with many Wilwood compound options to fine-tune your driving style and track conditions. The Billet NDLR caliper is compact, lightweight, and robust, providing strong clamping force from its four stainless steel cup pistons. The bodies are fully CNC machined from solid billet, with internal fluid ports that eliminate external fluid tubing. Each caliper is equipped with two corner bleeds and external inlets at the proper location for standard inboard mounting. The bridges are fitted with stainless steel anti-vibration wear plates. These plates reduce wear on the bridges and provide smooth, vibration-free pad operation. A central bridge bolt adds to the caliper's overall strength and positive top-load pad retention. All Billet NDLR calipers are designed for long life using the 0.63” 16.0mm thick 7816 style brake pads. These pads are available in a variety of PolyMatrix compounds to provide the right braking torque and temperature range for any high-performance or racing application. Radial mount bracket kits are used to install a radial mount brake caliper in place of a lug mount brake caliper. Brackets are available for Sprint and Midget Inboard and Dirt Late Model applications for various rotor diameters.

Pistons

Piston Quantity	4
Piston Area (in²)	5.56
Piston Type	Stainless
Dust Boot	No

Rotor Dimensions

Rotor Width (in)	0.81
Rotor Diameter (in)	12.19

Pad Dimensions

Pad Area (in²)	6.36
Pad Volume (in³)	3

Service Rating & Material

Material	Billet Aluminum
Weight (lbs)	3.5

Colors & Finish

Color	Anodized
Finish	Type III Anodized

Mounting

Mounting Center (in)	4.75
Mounting Position
Mount Side	Universal
Mount Type	Radial

Specifications

Rotor Compatibility

Rotor Width (in)	0.81
Max Rotor Width (in)	0.81	Min Rotor Width (in)	0.75	Max Rotor Diameter (in)
Min Rotor Diameter (in)	11.75

Brake Pad Specifications

Brake Pad Type 1	7816
Brake Pad Type 2	7216
Brake Pad Type 3	N-A
Total Pad Area (in²)	6.36
Total Pad Volume (in³)	3
Mount

Piston

Specifications

Piston Bore 1 (in)	1.88
Piston Bore 2 (in)	1.88
Piston Bore 3 (in)
Total Piston Area (in.²)	5.56

Mounting Specifications

Mount Type	Radial
Mount Side	Universal
Mounting Center (inches)