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"Your Guide to Vintage Racing in the United States"


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2010 AHRMA Handbook

Pre-Entry Forms can be found on the "Calendar" Page under each discipline...

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Vintage Road Racing


Brian Filo on his Formula 750 class Yamaha twin ~ Photo: Matt Benson

Race Information

Deadlines: Pre-entry deadlines typically are the Friday two weeks before an event. For certain events, pre-entries may close sooner. Consult the table at the bottom of this page for exact closing dates.

Race fees - All events except those highlighted below: Race fees for all events, first class $85 each day; each additional class $75. Post-entry, first class $100 each day; each additional class $75. NOTE: Each day of racing is a separate event with a separate fee schedule.   DAYTONA: Post-entry: $120 for first class each day, $75 each additional class.

Practice days will be available at most venues on the preceding Friday (see schedule). Cost for AHRMA-run practice days: Pre-entry or post-entry, $120. For track-run practice days, contact the track or event promoter.

Confirmation and event details: Your entry will be confirmed by mail on receipt. Details such as directions, starting times and lodging are published in Vintage Views and by following the "Preview" links on the schedule at the bottom of this page.

Membership: Current AHRMA membership is required to compete in AHRMA national events. For AHRMA membership information, please contact us.  Memberships and renewals are available at the track.

Medical insurance: Proof of personal health coverage is required.

Refunds: See AHRMA Handbook rule 4.7a. There may be refund restrictions for certain events. The refund request form is available on-line.

Race class options: The following classes are available. Check the AHRMA Handbook for complete details of class requirements.

Class

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500 Premier: 500cc four-stroke OHV and OHC, or 750cc sidevalve machines built before the end of 1968.

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500 Grand Prix: 500 Premier bikes with the additional restrictions of 285 lbs. dry, stock stroke and gear boxes restricted to 4 speeds.

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350 Grand Prix: 350cc four-stroke machines; 350cc air-cooled, single-cylinder, two-strokes with no more than five speeds; 250cc two-stroke water-cooled singles; 250cc twin-cylinder air-cooled two-strokes with no more than six speeds. Machines must have been built before Dec. 31, 1968.

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250 Grand Prix: 250cc four-stroke machines; 250cc air-cooled, maximum five-speed, single-cylinder two-strokes; 175cc two-stroke water-cooled singles; 175cc air-cooled, twin-cylinder, two-stroke machines with no more than six speeds. Machines must have been built before Dec. 31, 1968.

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200 Grand Prix: This class combines a variety of engine designs and displacements between 125cc and 250cc, based on an index of performance.

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Formula 750: Works 750cc four-stroke machines, including accurate replicas of Formula 750 machines of the early 1970s. Also includes machines not eligible for Sportsman 750.

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Formula 500: Two-stroke and certain four-stroke machines up to 500cc grouped on an index-of-performance basis, with a Dec. 31, 1972, cutoff.

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Formula 250: Two-stroke air-cooled machines, including singes up to 360cc and twins up to 250cc, with a Dec. 31, 1972, cutoff.

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Formula 125: Certain machines up to 125cc, with a Dec. 31, 1972, cutoff.

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Formula Vintage: Open to machines from 500 Premier, F-750, Formula 500 and Sportsman 750.

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BEARS®: Certain two-cylinder machines built up through 1968 and competing under Formula 750 specifications.

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Class C: Intended for AMA "Class C" machines up to and including those manufactured December 31, 1951, as a ‘51 model. Class C Handshift is a championship class run together with but scored separately from Class C.

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Pre-1940 Grand Prix: 1940 and earlier Grand Prix or modified street machines, including 500cc single-cylinder OHV and OHC and 750cc sidevalve machines.

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Classic Sixties: A class for 1960 and earlier (or like model) Grand Prix/Clubman 500cc four-stroke OHV and OHC machines, or 750cc sidevalve, in basically standard form. Plus 350cc OHV and OHC. Classic Sixties 650 is open to British and European OHC 650cc machines of the period and the Harley-Davidson KH.

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Sportsman: Four-stroke, maximum three-cylinder street bike-based machines, divided into 350cc, 500cc and 750cc classes. The cutoff is Dec. 31, 1972.

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Novice Historic Production 1972 and earlier production street machines with the standard OEM frame, swingarm, forks and handlebar mounts. Engines use the original OEM bore and stroke. Classes are Lightweight (four-strokes up to 500cc, 250cc two-strokes and certain 350cc two-strokes) and Heavyweight (four-strokes up to 750cc and 350-500cc two-strokes).

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Sidecar: 750cc four-stroke, twin-cylinder, or 500cc two-stroke, air-cooled, twin-cylinder powerplants. Rules available from the AHRMA national office. 

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Vintage Superbike. AHRMA's newest roadrace category includes three classes for motorcycles built up to the 1982 model year and originally manufactured as street machines. Motorcycles are to be as close to "production" appearance as possible. Classes are Heavyweight (unlimited displacement twins and pushrod triples, and displacement-limited fours and sixes), Middleweight (unlimited displacement singles, with limited pushrod twins, OHC twins, pushrod triples and OHC fours) and Lightweight (singles, twins and multis using performance indexes for smaller bikes).

Click here for schedule and event entry forms.

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