With the help of SEMA’s Washington DC office staff, we have not found any federal or state laws or regulations that would specifically make ‘Beadlock Wheels’ illegal for street use. To follow is a summary of the research.
NHTSA has established regulations for all types of on-road tires; however, wheels are generally subject to industry standards (ex: SAE J2530). There are two NHTSA safety standards that reference wheels (rims), FMVSS Nos. 110 and 120, but they are focused on making sure the vehicle has the proper size tire/wheel combination. They do not establish performance requirements, although the standard for wheels for motor vehicles with a GVWR beyond 10,000 pounds includes marking requirements.
In the absence of a safety standard, NHTSA relies on compliance with industry standards. In this case, wheels should comply with applicable SAE standards (ex: SAE J2530) including tests for radial fatigue, impact, and cornering fatigue, and continued compliance after the beadlock is installed.
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