Hawk HB159D.492 ER-1 Rear Brake Pads for 94-05 Mazda Miata MX-5 NA/NB

Vehicle Fitment

• 1994-1997 Mazda Miata MX-5 (NA, 1.8L, RWD, Rear)
• 1999-2005 Mazda Miata MX-5 (NB, 1.6L / 1.8L, RWD, Rear)
• Fits factory rear brake calipers only
• Excludes Sport/Big Brake or performance brake package models
• Fitment confirmed through 2005. No later years supported.

Features

• ER-1 medium-to-high torque motorsports compound
• Enhanced modulation and pedal communication for HPDE or track days
• Consistent friction and heat stability in repeated heavy braking
• Superior pad and rotor wear vs many race compounds
• Designed for light-to-medium weight vehicles like Miata MX-5
• Operates across a broad performance temperature range
• Iron/metal rotor compatibility (not carbon-ceramic)
• Direct fit into OEM rear calipers with included hardware

Specifications

• Part Number: HB159D.492
• Position: Rear
• Compound: ER-1 motorsports compound
• Friction Material: Performance friction formulation
• Pad Thickness: 0.492 in (~12.5 mm)
• FMSI Shapes: D636 / D663 (rear pad profile)
• Medium-to-high torque suitable for HPDE and track applications
• Rotor Compatibility: Iron/metal rotors only

Included Components

• 4x Rear brake pads (inner & outer)
• 1x Hardware/clip kit for rear caliper installation
• 1x Shim set

Product Description

The Hawk HB159D.492 ER-1 Rear Brake Pads are a performance-oriented upgrade designed specifically for the rear brakes of 1994-2005 Mazda Miata MX-5 NA & NB models with factory rear disc brakes. Featuring Hawk's versatile ER-1 friction compound, these pads deliver medium-to-high torque, excellent heat stability, and consistent pedal feel for high performance driving environments including high-performance driving events (HPDE), track days, time trials, and spirited back-road use.

The ER-1 formulation balances superior pad and rotor life with sustained friction performance across repeated heavy braking cycles. These pads mount directly into the factory rear calipers with included hardware and shims for straightforward installation, making them an ideal choice for drivers seeking a motorsport capable rear braking solution without sacrificing everyday usability.