From a press release:

The American Historic Racing Motorcycle Association is embracing the next generation of classic road racing with three new Vintage Superbike classes, catering to motorcycles built through the 1980 model year. AHRMA’s Vintage classes previously topped out with 1972 machines.

To be eligible for Vintage Superbike, machines must be based on street-legal models that were sold in the United States or Canada. Many engine and frame modifications are permitted, but the overall look of the motorcycles must remain as close to “production” as possible. For example, the headlight and taillight shells must be retained, as well as the instrument housings, original fuel tank, seat and fenders. Tail sections, fairings and clip-ons cannot be added unless they are original equipment from that particular model. Treaded racing tires must be used.

Vintage Superbike classes include:

. Heavyweight – Unlimited-displacement twins and triples; six-cylinders to 1047cc; eight-valve fours to 931cc; and 16-valve fours to 825cc.

. Middleweight – pushrod twins to 890cc; pushrod triples and OHC twins to 790cc; and four-cylinders to 685cc.

. Lightweight – two-valve singles to 590cc; four-valve singles to 510cc; and two- or more cylinder machines to 470cc.

The displacement limits are absolute, including any overbore.

Vintage Superbike will make its debut at AHRMA’s 2002 Florida Bike Week events, March 1, at the DeLand Airport, and March 4-5 at Daytona International Speedway. For information, call 615-851-3674, 913-268-4401 or visit www.ahrma.org for a complete description of the new class rules.