StacksVerified U.S. regulatory reference

49 CFR §570.10

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Wheel integrity. A tire rim, wheel disc, or spider shall have no visible cracks, elongated bolt holes, or indication of repair by welding.
    1. (1)Inspection procedure. Examine visually for conditions indicated.
  2. (b)Deformation. The lateral and radial runout of each rim bead area shall not exceed one-eighth of an inch of total indicated runout.
    1. (1)Inspection procedure. Using a runout indicator gauge, and a suitable stand, measure lateral and radial runout of rim bead through one full wheel revolution and note runout in excess of one-eighth of an inch.
  3. (c)Mounting. All wheel nuts and bolts shall be in place and tight.
    1. (1)Inspection procedure. Check wheel retention for conditions indicated.