Parts/Miata
Miata · Buyer's guide

NA/NB Miata Brake Rotor and Caliper Fitment: Standard vs Sport

US-market 1990-1993 NA6, 1994-1997 NA8, 1999-2000 NB1, and 2001-2005 NB2. Explicitly split 2001-2002 standard brakes from Sport brakes; 2003-2005 use Sport-size applications in the checked sources.

Current seller options

WHERE TO BUY

Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.

Seller links checked . Prices and availability can change.

What you need to know

Separate 1990-1993, 1994-2000, 2001-2002 standard, 2001-2002 Sport, and 2003-2005 applications. Verify measured rotor diameter and installed hardware after previous swaps. Check ABS/EBD implications and wheel clearance for conversions.

OEM numbers

No universal rotor/caliper kit number is claimed. Checked sources separate early NA, NA8/NB standard-size, and 2001-2005 Sport-size componentsexact Wilwood kits are application-specific.

Supersession

No standard-to-Sport supersession is claimed. A conversion requires the matched rotor, bracket/caliper, pad and clearance package rather than a rotor-only assumption.

Fitment

Separate 1990-1993, 1994-2000, 2001-2002 standard, 2001-2002 Sport, and 2003-2005 applications. Verify measured rotor diameter and installed hardware after previous swaps. Check ABS/EBD implications and wheel clearance for conversions.

Aftermarket options

Stock-size refresh kits, matched Sport-size conversions and engineered big-brake kits are distinct paths. Do not mix front and rear bias-sensitive components or assume a trim/package badge proves installed rotor size.

Before you buy

Do not order from model year alone on a modified car. Measure the installed rotors and inspect brackets/calipers. A Sport suspension package name does not by itself prove brake hardware. ABS/EBD and wheel clearance matter for conversions.

Research and fitment sources