After the Harley drag bikes got off to such a dominating start in the NHRA Pro Stock Motorcycle season at the Gatornationals, the NHRA has changed the rules for their bikes. Harley has been told to add 20 pounds of weight to their 160-cid, 4-valve motorcycles in the Pro Stock Motorcycle category. The minimum weight will increase from 640 pounds to 660 pounds. Meanwhile the minimum weight for their competitors will be for the NHRA-accepted American pushrod V-Twin 160-cid, 615 pounds and the Suzuki 107-cid 2-valve, 595 pounds.

The NHRA made the change in its ongoing efforts at maintaining competition and parity within the category. The change becomes effective April 27, 2012, at the O’Reilly Auto Parts NHRA Spring Nationals presented by Super Start Batteries in Houston, which is the next stop on the NHRA Full Throttle Drag Racing Series for Pro Stock Motorcycle. The NHRA says it will continue to monitor performance and will make further adjustments if necessary.

Source and image: NHRA
Posted by Sam Kanish

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