NHRA - National Hot Rod Association

Following the fourth round of qualifying at the Super Grip NHRA Thunder Valley Nationals in Bristol, Erica Enders' Pro Stock car was found to be equipped with beadlock liner wheels, including an inner liner tire. These wheels and (inner/liner) tires were originally developed to provide increased sidewall support during launch and reduce the likelihood of tire shake. The widespread adoption of this combination in other categories where wheel liners are legal demonstrates that the performance benefits of improved tire support outweigh the added weight.
 
Based on this, the NHRA Technical Department determined that the use of these wheels and (inner/liner) tires was intended to create a performance advantage not permitted in the Pro Stock category.
 
The 2025 NHRA Rulebook clearly states that “…unless optional performance equipment or performance-related modification is specifically permitted by this Rulebook, it is prohibited. All model, engine, or equipment changes or modifications not specifically addressed in this Rulebook must be submitted in writing to NHRA for consideration prior to competition…” 
 
The Elite Motorsports team had a conversation with an NHRA Official regarding this topic during the Epping event, and this rule was communicated to them at that time. By choosing to use these wheels and tires in Bristol, they demonstrated a willful disregard for the instruction given by NHRA.