Spec Sizes

2019 Mazda CX-9 Tire Size

Confirmed OEM tire sizes for this model year. Multiple sizes may apply depending on trim and wheel package — all catalog options are listed.

  • Option255/45R21
  • Option255/50R20
  • Option255/55R19
  • Option255/60R18
255/45R21Section width 255 mmSidewall ~115 mm(45% of width)Rim 21"255/45R21255 = width45 = aspectR21 = rim
OEM code 255/45R21: section 255 mm · aspect 45% · rim 21"

All confirmed configurations

SizePositionWidthAspectRimLoadSpeed
255/45R21Front / all2554521"103H
255/50R20 (run-flat)Front / all2555020"106V
255/55R19 (run-flat)Front / all2555519"96W
255/60R18 (run-flat)Front / all2556018"108H