EBC USR418 Front Slotted Rotors for 1990-1994 Mazda Miata 1.6L

Vehicle Fitment

• 1990-1993 Mazda Miata (Base, 1.6L I4, RWD)
• 1991 Mazda Miata (SE, 1.6L I4, RWD)
• 1992-1994 Mazda Miata (B Package, C Package, 1.6L I4, RWD)
• Excludes later 1.8L brake configuration applications

Features

• EBC USR Series fine-slotted front brake rotor set
• Front-position direct replacement sport rotor upgrade
• Narrow-profile slot pattern helps evacuate heat, gas, dust, and debris
• USR slot design is engineered to reduce air noise versus wider-slot sport rotors
• Vented 1-piece rotor construction for the confirmed front application
• Silver corrosion-resistant coating helps protect exposed rotor surfaces
• Direct-fit design for stock caliper applications
• Sold as a pair for the front axle
• Suitable for daily street driving and performance-oriented street use
• Designed around the 235 x 18 mm front rotor configuration

Specifications

• Brand: EBC Brakes
• Part Number: USR418
• Series: USR Series Sport Rotors
• Position: Front
• Rotor Style: Fine slotted
• Rotor Diameter: 9.30 in. / 235 mm
• Rotor Thickness: 0.709 in. / 18 mm
• Rotor Construction: Vented
• Rotor Material: Iron
• Rotor Finish: Gray/Silver coated
• For Use with Stock Calipers: Yes
• Quantity: 2x front rotors

Included Components

• 2x Front USR fine-slotted brake rotors

Product Description

The EBC USR418 is a front USR Series sport rotor set designed as a direct-fit upgrade for NA Mazda Miata applications using the 235 x 18 mm vented front rotor setup. EBC's USR rotor line uses a narrow fine-slot pattern that helps clear heat, gas, dust, and debris while reducing air noise compared with wider-slot sport rotor designs. That makes it a strong choice for drivers who want a sharper street brake feel and improved braking consistency without moving to a more aggressive track-focused rotor.

Cross-validated fitment supports 1990-1994 Mazda Miata 1.6L front applications, with multiple trusted retailer listings specifically tying USR418 to the early NA Miata 235 mm front brake configuration. I did not extend fitment to later 1.8L Miata applications because the reviewed sources consistently point to the 1990-1994 1.6L setup only. No lift or drop height applies because this is a brake rotor set, not a suspension component. Fitment confirmed through 1994 on reviewed sources. 2025 coverage unconfirmed at time of listing.