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The following is an overview
of the basic categories that are currently run in the AFM Championship
Series. There are "General Requirements of All Motorcycles" which
all bikes must meet, as well as specific requirements for different classes.
Detailed information on all classes is in the
AFM Rulebook.
Production motorcycles
are street machines that can be purchased by anyone at a dealership. They must
be made for the United States market and be for street use. Limited edition
motorcycles intended for racing purposes are generally not allowed in Production
classes.
The suspension and engine may be modified; however, the carburetors and exhaust
pipes must be original and unmodified (carburetor jetting excepted). Street
legal, DOT approved tires must also be used. The gas tank, seat, fairing and
other bodywork must be essentially unchanged (except for modifications to be
in compliance with the catch pan rule). Rear fender(s) may be removed.
The Production classes are further broken down by engine size, conforming to
the typical sizes offered by manufacturers; Displacement categories are:
- 175-250cc
- 251-450cc
- 600-650cc Twins, 399-450cc 4-cylinders
- 601-750cc
- 751-Open cc.
Superbike motorcycles
must also be manufactured for street use, but may be made for any market in
the world (many models are not available in the United States). Again, limited
editions for racing purposes may not be allowed.
The frame and engine combination of Superbike bikes must be as sold, but modifications
allowed are almost unlimited and they may use "racing only" slick
tires. Many of these machines have hundreds of hours of development time and
tens of thousands of dollars invested in them.
Superbike classes have the following displacement categories.
175-250cc, 251-450cc, 451-600cc, 601-750cc, 751-Open cc..
The one exception to the Superbike structure is the Super Dinosaur
class, which was designed as a slightly less expensive place to race those
slightly older racebikes. It follows basic Superbike rules, except. 12 years
or older (e.g. 1996 and earlier for 2008) model year, DOT tires must be used, and lastly,
there is no displacement limit at present; but if enough interest and participation
occurs we may split it into separate "big/small" categories. It
is a points and awards class and one additional bonus is that WSMC also offers
a very similar class, so riders can race Dinosaur classes in both clubs using
the same bike configuration. It's a great place to bring out the old iron
or that older but still good racebike you might find in many a rider's garage.
Formula -
The Formula classes
are a bit more complicated. The bikes can be based street machines and highly
modified or they can be factory built race bikes. Refer to a rulebook for
class specifics and formulas.
Modifications are unlimited within the various classes provided they meet
the engine size/type formula for the class.
- Formula I allows medium- to large-displacement four-stroke multis and larger two-strokes.
- Formula II is a class where the true factory built, racing-only motorcycles rule. They
are almost exclusively 250cc two-strokes with water-cooled engines. Large four-stroke singles are also allowed.
- Formula III also features mostly factory built race bikes, but these are 125cc two-strokes with water
cooled engines. Smaller four-stroke singles can run here.
- Formula IV allows a wide variety of bike types. Various four-cylinders, mid-size twins, singles,
and two-strokes all compete against each other.
- Formula Singles are four-stroke, single cylinder engines of unlimited size surrounded by any frame,
suspension, etc. the builder wants to use.
- Formula Twins are four-stroke, twin cylinder engines broken down into three categories
(245-500cc, 501-650cc, 651-Open cc) surrounded by any frame, suspension, etc.
- Formula 40 can be any machine as long as its rider is 40 years of age or older. This
class is Chapter Optional and is offered when we have room in the schedule (see the raceday
schedule or the latest news/updates page for updates).
- Formula Vintage are bikes meeting the AHRMA Vintage rules and AFM safety rules. For
more info on vintage stuff, you can contact the AHRMA coordinator, Dave Russel, at
(650) 967-0435 in the evening (before 10pm please).
The AFM Formula Pacific Challenge
Formula Pacific
is a special class in the AFM... it is the club's premiere event of the raceday,
and it can be any machine as long as its rider can hustle it around Infineon Raceway (Sears Point)
in 1:47 or less; Thunderhill in 1:59 or less; and Buttonwillow in 1:56 or less.
These riders are racing for a cash purse and the AFM's prestigious Top 1-5
Plates for the following race season. these ARE the fastest riders on the fastest bikes.
The Formula Pacific Series is also
one of many promotional opportunities for any company interested in being
a partial or full series sponsor...name association with the series, advertising
in a number of publications and multiple press releases before and after each
event, numerous passes to AFM events and other valuable exposure.
Intrigued by Class or Series Sponsorship Possibilities??
AFM is always seeking interested companies or individuals for series sponsorship
for available classes... many levels of sponsor
packages are available; contact the
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and we'll put you in contact with one of our AFM Officers or
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who coordinates such
programs. Often, many of the more popular classes will
be "taken" by the time racing starts, but there are usually some
available at any point during the season and many of these are large and well-contested
classes.
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