RIDEX Front Brake Discs Pair – MX-5 Mk1 NA 1.8 / Mk2 NB Standard Brakes • 82B0361

RIDEX Front Brake Discs Pair – 82B0361

Replacement ventilated front brake discs for Mazda MX-5 Mk1 / NA 1.8 and Mk2 / NB / NB-FL 1.6 and 1.8 petrol models (1994–2005) fitted with the corresponding standard 255mm front braking system. Supplied as a matching pair for both front wheels.

RIDEX 82B0361 front brake discs provide replacement braking surfaces for the front axle, helping restore braking performance when the original discs have become worn, damaged or excessively corroded.

The front brake discs are essential components of the Mazda MX-5 braking system. When the brake pedal is pressed, hydraulic pressure forces the front brake pads against the rotating discs, generating friction to reduce wheel speed and slow the vehicle.

Front brakes are subjected to significant braking loads, particularly during repeated braking, higher-speed driving and demanding road conditions. The brake discs must withstand frictional forces and high operating temperatures while maintaining consistent contact with the pads.

These RIDEX discs feature a ventilated cast-iron construction. The internal ventilation channels promote airflow through the disc as it rotates, helping manage operating temperatures during braking.

The discs measure 255mm in diameter and 20mm in nominal thickness, with a 45.1mm overall height, 55mm centre bore and 4 × 100mm wheel bolt pattern.

The uncoated cast-iron surfaces provide the friction interface required for operation with compatible front brake pads.

Over time, brake discs experience gradual frictional wear, corrosion and repeated heating and cooling. Damaged or excessively worn discs can contribute to brake judder, unwanted noise, uneven pad contact or reduced braking performance.

Replacing the front brake discs in pairs helps maintain consistent braking characteristics across the front axle.

For the best servicing results, front brake pads should also be inspected and replaced when necessary, particularly where existing pads have become unevenly worn or contaminated.

RIDEX 82B0361 is designed for the corresponding standard front brake system fitted to Mazda MX-5 Mk1 1.8 and selected Mk2 / Mk2.5 models.

Key Features & Benefits

• Replacement ventilated front brake disc pair
• Suitable for Mazda MX-5 Mk1 / NA 1.8 and Mk2 / NB 1.6 / 1.8 models with standard brakes
• Designed for the 255mm front braking system
• Durable cast-iron construction
• Ventilated design helps manage braking temperatures
• 255mm nominal disc diameter
• 20mm nominal disc thickness
• 55mm centre bore
• 4 × 100mm mounting pattern
• Plain, non-drilled braking surfaces
• Supplied as a matching pair for both front wheels
• Suitable for routine brake servicing and replacement of worn front discs

Product Specifications

• Product type: Front brake disc pair
• Fitting position: Front axle, left and right
• Brake disc design: Internally ventilated
• Material: Cast iron
• Diameter: 255mm
• Nominal thickness: 20mm
• Overall height: 45.1mm
• Centre bore: 55mm
• Pitch circle diameter: 100mm
• Wheel bolt pattern: 4 × 100mm
• Wheel bolt bore diameter: 13mm
• Mounting hole arrangement: 4/5
• Surface finish: Uncoated
• Disc design: Plain / non-drilled
• Fixing bolts: Not included
• Vehicle application: Mazda MX-5 NA 1.8 and NB / NB-FL standard front brakes
• Quantity supplied: 2 front brake discs
• Condition: New
• Brand: RIDEX
• Manufacturer Part Number: 82B0361
• EAN: 4059191129096

Fitment Advice: Suitable for the standard 255mm ventilated front braking system fitted to Mazda MX-5 Mk1 / NA 1.8 and selected Mk2 / NB and Mk2.5 / NB-FL 1.6 and 1.8 models. Early Mk1 1.6 vehicles use smaller front brake discs, while Mk2.5 Sport models with the larger brake package require a different front disc. Vehicles equipped with upgraded brakes require discs matched to the fitted calipers and braking system.

Signs of Worn Brake Discs: Scored or uneven braking surfaces, excessive corrosion, a pronounced wear lip, vibration or judder during braking, unusual braking noise and disc thickness below the manufacturer's permitted minimum.

Other Items to Consider: Front brake pads, brake caliper slider pins, brake pad fitting hardware, brake caliper servicing components, brake hoses, brake fluid and brake cleaning products.

Useful Tools / Consumables: Vehicle lifting equipment, axle stands, wheel nut socket, brake caliper tools, socket and spanner set, calibrated torque wrench, brake cleaner, hub cleaning equipment and suitable brake assembly lubricant.

Difficulty Guide: Moderate. Replacement involves removing the front wheels and brake calipers, inspecting the braking components, preparing the wheel hub mounting surfaces and installing the replacement discs.

Why RIDEX? RIDEX supplies aftermarket braking and servicing components designed for routine maintenance and replacement of worn vehicle parts. The 82B0361 discs provide a practical solution for renewing the standard front braking system on compatible Mazda MX-5 NA and NB models.

What's in the Box: 2x RIDEX 82B0361 Ventilated Front Brake Discs, supplied as a matching pair for both front wheels.

Installation / Service Notes: Follow the appropriate Mazda front braking system service procedure. Safely raise and support the vehicle before removing the front wheels. Remove the brake calipers and brackets as necessary, supporting the calipers without placing strain on the flexible brake hoses. Remove the original brake discs and inspect the hubs, calipers, slider pins, pads and surrounding components for wear, corrosion or damage. Clean the wheel hub mating surfaces thoroughly to ensure the replacement discs seat correctly and run true. Remove any protective manufacturing residue from the new braking surfaces using suitable brake cleaner. Fit the replacement RIDEX discs, ensuring they sit flush against the hubs. Inspect the existing brake pads and replace them if worn, contaminated or unevenly bedded. Reassemble the brake calipers using the correct fitting hardware and manufacturer-specified tightening torques. Refit the wheels and tighten the wheel nuts to the prescribed torque. Pump the brake pedal to restore normal pedal travel before moving the vehicle. Carry out a controlled brake operation test and follow the appropriate bedding-in procedure for the fitted discs and pads.