New Rules
100cc MX Rule
After receiving feedback from the membership, the AHRMA Vintage Motocross
Rules & Eligibility Committee is making a rules revision for the new 2008 100cc
Motocross class. Effective immediately, six-speed gearboxes will be permitted in
any 1974-and-earlier motorcycles (and like-design), which were factory-equipped as
such.
No conversions to six-speeds are allowed, either with aftermarket or OEM parts,
to machines originally produced as four- or five-speeds. The R&E Committee received
numerous proposals for a 100cc class in Vintage motocross over the past few years.
Members were not in agreement as to what kind of machinery they wanted to have in the
class, as no two proposals were the same. Without solid input, and with the benefit
of 24 years of experience watching other classes with relatively liberal mechanical
requirements evolve, the Committee concluded that the five-speed-maximum rule would
best serve the long-term health and diversity of this new 100cc class.
However, the membership has spoken, and AHRMA will instead implement the 100cc
Motocross class to include the pre-1975 six-speed bikes. An additional
clarification: Hubs and forks from any 1974-and-earlier production motorcycle can be
used in the 100cc Motocross class. This is consistent with every other class in the
Vintage motocross program.
(posted on www.ahrma.org 01/07/08)
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