NHRA Releases 2025 Rulebook Amendment Updates

The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com.

These amendments include the following changes…See the latest amendments document for complete details.

·         Section 16, Pro Stock Motorcycle – Parity update

·       Gen 2 (up to 160 cid; 60-degree angle, 2-valve, pushrod) – 640 635 pounds

·       Gen 1/ Gen 2 Hybrid (Gen 2 case or head) – 640 635 pounds

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