Section 12 – Post Vintage Motocross

MISSION STATEMENT: The mission of AHRMA Post Vintage Motocross is to showcase an innovative and revolutionary period of MX racing. This relatively short time frame is recognized as the beginning of the long-suspension-travel era of motocross which lasts to this day, and also the emergence of the American domination on the world racing scene. Machines of this era were purpose-built motocross racers which introduced many technologies, from the very first longtravel suspension through to the advent of water-cooled engines and linkagecontrolled rear suspensions found at the end of this exciting time in motocross. These technological advances result in a motorcycle which has the ability to travel at incredible speeds over very rough terrain and endure punishment that would have inflicted race-ending damage to earlier machines. These capabilities, coupled with advancing riding styles and techniques, dictated changes in the racetracks. Tracks became specially prepared, permanent-style circuits, which utilized some man-made obstacles in addition to natural terrain features. The Post Vintage era ends as we start to see the inclusion of Supercross-style obstacles in the tracks, and the inclusion of disc brakes and other advanced features from the factories as original equipment. The primary purpose of AHRMA Post Vintage Motocross is to provide an appropriate place for these machines to be preserved and ridden by those who are interested in reliving the era, in addition to educating and exposing the history to those who may not have been participants the first time around. With careful attention to racetrack preparation, and to rules crafting, AHRMA is making certain that Post Vintage Motocross bikes will be enjoyed by its members of today and tomorrow. AHRMA’s Post Vintage Motocross structure is intended to include and categorize the motocross bikes that inspired the “long-travel” revolution that transformed motocross into a sport that’s very different from the earlier, short-travel era. This program groups similar motorcycles into classes that are similar to the changes that were taking place at the racetracks throughout the intended era of each class.

Please submit any requests for new rules or machine eligibility to the Post

Vintage Motocross Rules & Eligibility Committee (see Section 17). Proposals for Post Vintage Motocross Rules Changes or general machine (year/make/ model) Eligibility Class changes must be made via the Rule Change Proposal Form (Section 19, page 132) during the annual period for Rules Change Proposals announced on theAHRMA.ORG web site.Approved changes become effective on an annual basis. Note: The Eligibility Request Form (ERF, Section 19, page 130) is not to be used for this purpose. The ERF is used when classification for a specific “one-off” machine or approval of its individual components is required.

NOTE:All modifications must be consistent with the intended time frame of the class.