Glossary

Inflation cage

Last reviewed: 2026-05-20

Source review note: This term covers a compliance, regulatory, or enforcement topic where current rules, annual updates, or carrier policy may affect the correct answer. Use this as background only. Verify applicable regulations and carrier policy before making decisions.

A safety restraint device required by OSHA (29 CFR 1910.177) when inflating tires that may have been run flat or that have unknown prior condition. The cage contains the tire and rim if a zipper failure occurs during reinflation. Using an inflation cage is mandatory in shop settings when the tire's condition is uncertain.

Never reinflate a tire that has been run flat or severely underinflated outside of a proper inflation cage. This applies even when working roadside — follow your carrier's safety procedures.

Real-World Use

A tire arriving at the shop completely flat from a roadside pickup is placed in an inflation cage before any air is added — following OSHA requirements and protecting shop personnel from the risk of zipper failure.

Reference Sources

Sources used for context and verification of regulatory thresholds, inspection criteria, and compliance references on this page.

Gov 29 CFR 1910.177 - Servicing multi-piece and single piece rim wheels (Electronic Code of Federal Regulations, reviewed 2026-05-20)

What to Pair It With

Read this term with the full tire sidewall, vehicle rating information, manufacturer documentation, and the actual condition of the tire.

This site is for general information only. It does not replace professional tire service, DOT compliance advice, tire manufacturer instructions, vehicle manufacturer recommendations, or fleet policy.