When to use run flat inserts instead of run flat tires

Use run-flat inserts for a standard tire plus a support ring on 14.00R20, 335/80R20 or 225/40R19. Use a run-flat tire when the OEM specs a stiff sidewall.

Use run-flat inserts for a standard tire plus a support ring on 14.00R20, 335/80R20 or 225/40R19. Use a run-flat tire when the OEM specs a stiff sidewall.

Run flat insert two piece vs three piece depends on rim and tire cavity. Compare install labor and size class so you buy segments that actually bolt together.