Based on Pro Stock Motorcycle performance data, the NHRA Technical Department is reducing the minimum weight of the 2-valve Suzuki up to 107 CID entries from 590 pounds to 580 pounds and the 2-valve Suzuki up to 113 CID from 600 pounds to 590 pounds. All other minimum weights will remain the same. This rule change will go into effect immediately. NHRA reserves the right in the future to make additional rule changes to control performance and maintain parity in the category.