Showing specs for all NA & NB Miatas

Clutch pedal minimum disengagement height (NB1)

68 mm (2.68 in), minimum, with carpet

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Minimum distance from the upper pedal-pad surface to the carpet with the pedal fully depressed.

Applies to
  • NB 1999–2000 (BP-4W, 5MT/6MT) — Other years in this family inferred from 1999 factory evidence with owner approval; actual-year verification is separate.
  • Verified in: 1999 Mazda MX-5 Miata Workshop Manual
Sources

Also in Additional factory manual gap audit