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Thread: Dinosaur Rules questions

  1. #1
    Join Date
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    Default Dinosaur Rules questions

    In the general forum, I asked for a full set of rules for the new Dinosaur class, not realizing that I had already read the full set, assuming what I had read was an outline for further, in depth breakdowns.

    So, since their aren't, and the current ruleset is ambiguous at best, I'd like to ask a few questions, pulling some specifics from the previous section 'O'.

    From 'O':
    e) Frames: Must be consistent with the period.
    Dino Rules:
    1)All modifications are permitted providing they conform to the regulations and vintage intent and are consistent with safety.
    These sorta overlap... But it seems implied that the dino class has more leniency in terms of modifications.. Is this the intention?

    From 'O':
    Swingarms may be strengthened
    by one or both of the following methods only:
    _ the addition of gussets
    _ the addition of other material directly to the swingarm so as to not
    increase its overall height or profile beyond 1/2" greater than the
    original stock swingarm.
    _ No “superstructures” may be added as part of any strengthening.
    The swingarm can be 1 x 2 rectangular steel tubing.
    Does this carry over to Dino?

    From 'O'
    3) All classes may substitute modern treaded racing tires with rims to suit. Maximum wheel rim width is WM5 (2.75-3.00), minimum rim diameter is 18 inches, except where originally-fitted with smaller diameter wheels.
    Nothing is mentioned about rim width in the Dino rules. So, does this stand? It also doesn't address the issue of Mags or mag-type wheels, which were available on bikes in '77.

    From 'O'
    4) Cylinder(s) overbore limit is 0.060 inches.
    Does
    Street based motorcycles having unlimited displacement,
    mean that a bike of any size be bored out .060, or does it mean that any bike can be taken as large as we care to do so?


    I have more questions, but I'll start with these.

  2. #2
    Join Date
    Sep 2007
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    508

    Default

    Mark, we're working on getting your question answered...
    Stay tuned.

  3. #3

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    Mark -

    I'm trying to find out who is the Vintage rules consultant for 2011 before I give you a formal answer. However, I believe that several of the items you've quoted come from the Vintage* class subsection. Since the Open dinosaur section is separate, restrictions contained only in the Vintage class (Section O, Subsection 3-B) should not apply to the Open Dinosaur (Section 0 Subsection 3-D).

    *Note that there are B) Vintage, C) Open Vintage and D) Open dinosaur

  4. #4
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    Default

    Righto, Geoff.

    If it follows OV more or less, then the only questions that remain are 'mags permitted?' and I guess, are we limited in our engine overbores?

  5. #5
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    People are wondering why the '77 timeline cutoff exists, it excludes a lot of bikes that are very similar to what is allowed.

    We understand it's to exclude the 16v bikes, but wouldn't have been better to say "2 valve per cylinder air cooled inline fours" than "1977"?

  6. #6
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    Default

    very interested to hear these answers

  7. #7
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    Wait, who's the vintage rep right now?

  8. #8
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    Chris Page (503) 880-8246
    <chrispage47@gmail.com>

  9. #9
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    Thank you. Emailing now.

  10. #10
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    Default

    *crickets*

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