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Product details
Red Dynalite calipers clamp plain-face 12.19-inch front rotors in this conversion. A four-piston arrangement, separate hats and registration rings replace the specified original Mazda or Fiat service-brake assembly. Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded it in 1977. Its Camarillo, California operation supplies calipers, master cylinders, brake rotors, valves, fittings and lines for specialized, street-performance and motorsport applications. Each component must be chosen to match the complete brake system.
Technical Details
- Manufacturer: Wilwood
- Manufacturer part number: 140-14233-R
- Kit classification: Front Brake Kits - Street Performance
- Axle position: Front Kits
- Brake Type: Disc
- Selling unit: Sold as a kit.
- Master Cylinder Included: No
- Brake Booster Included: No
- Brake Lines Included: Yes
- Rotor Outside Diameter: 12.19 in; 309.63 mm
- Rotor Thickness: 0.81 in; 20.57 mm
- Rotor Material: Iron
- Surface Type: Plain Face
- Rotor construction: Vented
- Bolt Circle Diameter: 4 x 3.93 in; 4 x 99.82 mm
- Catalog stud / mounting-hole reference: 0.500 in; 12.70 mm
- Rotor surface finish: Plain
- Hat material: Aluminum
- Hat finish: Black E-Coat
- Hat offset dimension: 0.750 in
- Pistons per service caliper: 4
- Service-caliper piston construction: Stainless
- Service-caliper mount: Lug
- Caliper body construction: Forged aluminum
- Caliper Color: Red
- Caliper Finish: Red Powder Coat
- Caliper Inlet Port Diameter: 1/8-27 NPT
- Caliper family: Dynalite
- Pad compound: BP-10
- Minimum wheel guidance (clearance drawing required): 15 in; 381 mm
- Spindle Included: No
- Mounting Hardware Included: Yes
- Separate wheel hubs included: No
Fitment & Compatibility
Use the individual Mazda MX-5 Miata or Fiat 124 Spider year/trim below, including the specific 2017 Classica/Lusso entries rather than assuming every 124 version. DS-1176 includes front flexlines 220-12948 and registration rings. The 12.19-inch assembly may fit some 15-inch wheels, but barrel and spoke clearance must be measured from the supplied diagram.
Listed models: MX-5 Miata; 124 Spider. Use the fitment table below for the individual years, submodels and equipment conditions.
Wilwood product specifications · Installation instructions
Ask PMB Performance for help comparing the installation requirements. We have more than 20 years of experience working with brake parts and fitment.
| Years | Make | Model | Submodel | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|---|
| 2016-2023 | Mazda | MX-5 Miata | Club | Club | Disc | Disc | Front Kit | 1, 2, 3 |
| 2016-2023 | Mazda | MX-5 Miata | Grand Touring | Grand Touring | Disc | Disc | Front Kit | 1, 2, 3 |
| 2016-2023 | Mazda | MX-5 Miata | Sport | Sport | Disc | Disc | Front Kit | 1, 2, 3 |
| 2017 | Fiat | 124 Spider | Classica | Classica | Disc | Disc | Front Kit | 1, 2, 3 |
| 2017 | Fiat | 124 Spider | Lusso | Lusso | Disc | Disc | Front Kit | 1, 2, 3 |
| 2017-2023 | Mazda | MX-5 Miata | RF Club | RF Club | Disc | Disc | Front Kit | 1, 2, 3 |
| 2017-2023 | Mazda | MX-5 Miata | RF Grand Touring | RF Grand Touring | Disc | Disc | Front Kit | 1, 2, 3 |
| 2018-2019 | Mazda | MX-5 Miata | GS | GS | Disc | Disc | Front Kit | 1, 2, 3 |
| 2018-2019 | Mazda | MX-5 Miata | GT | GT | Disc | Disc | Front Kit | 1, 2, 3 |
| 2018 | Mazda | MX-5 Miata | GX | GX | Disc | Disc | Front Kit | 1, 2, 3 |
| 2018 | Mazda | MX-5 Miata | RF GS | RF GS | Disc | Disc | Front Kit | 1, 2, 3 |
| 2018-2019 | Mazda | MX-5 Miata | RF GT | RF GT | Disc | Disc | Front Kit | 1, 2, 3 |
| 2019 | Mazda | MX-5 Miata | GS-P | GS-P | Disc | Disc | Front Kit | 1, 2, 3 |
| 2019 | Mazda | MX-5 Miata | RF GS-P | RF GS-P | Disc | Disc | Front Kit | 1, 2, 3 |
