Page 1 of 3 123 LastLast
Results 1 to 25 of 73

Thread: 2013 Rule Change Suggestions CLOSED

  1. #1
    Mohammer Time! Expert
    Join Date
    Aug 2005
    Posts
    1,253

    2013 Rule Change Suggestions CLOSED



    Suggestions for the 2013 rulebook are now open and will be accepted until Monday October 1st, 2012 (rules suggestions will not be accepted after 2400hrs on October 1, 2012) Once the list is compiled, the proposed rule changes will be sent out to all members. Rule changes can be submitted to myself, the VP of Rules and Tech, or to any rider representative. The preferred method would be for racers to submit rule changes via this thread.

    We've changed the venue(and scenery) this year for the Annual Rule Change Meeting. We will be at Tilted Kilt on 16th Street in Downtown Denver on Saturday November 3rd at 2pm. We will be in their private banquet room.

    Tilted Kilt
    1201 16th Street #120
    Denver, CO 80202


    The rule change meeting is open to all members and will be held to discuss the proposed 2013 rule changes. The members attending this meeting will be encouraged to give input on the changes that should be presented to the MRA board for approval.* I would like to have finalized rule changes for the 2013 season in place before the end of the year.

    When making your suggestion, be sure to cite the existing rule and what changes you are suggesting. If it is a new rule, please use the exact wording as you would like it to appear at the rule change meeting and possibly the rulebook.

    If you want to discuss your rule change proposal, please start a separate thread.

    If you have any questions please shoot me a PM.

  2. #2
    Senior Member Amateur
    Join Date
    Sep 2011
    Location
    Colorado Springs, CO
    Posts
    104
    5.3 Number & Display Regulations

    D. Colors - all Expert competitors will use black numbers on a white background.
    Numbers must be approximately 8” high and 1” wide, of standard block lettering
    with no shading or outlining. Novices will use black numbers as specified above,
    but the numbers shall be on a yellow background. Expert class champions
    from the previous MRA season are permitted to use white numbers on a black
    background with the same size and style restrictions.
    The height of the numbers should be changed from 8" to something smaller like 5" or 6". It doesn't seem possible on the newer bike to fit an 8" number and have them legible from the front and sides. Thanks!

  3. #3
    Senior Member Amateur
    Join Date
    Oct 2008
    Posts
    273
    FOR SUPERSPORT CLASSES

    2.2.2 Class Equipment Requirements
    G. Only DOT approved tires or non-DOT full rain tires may be used. The original molded tread pattern cannot be modified. Non-DOT slicks and non-DOT intermediate tires are not allowed.

    **NEW**
    2.2.2 Class Equipment Requirements
    G. There are no restrictions on tires. Non-DOT slicks and intermediate tires along with full rains may be used.
    Pete Tabor
    MRA #599
    --------------------------
    Fun Center Cycles
    Sol Performance
    Speedin' Motorsports

  4. #4
    Resident T-Bagger Expert T Baggins's Avatar
    Join Date
    Mar 2005
    Location
    Somewhere between here and Elizabeth
    Posts
    5,164
    From Frank Diranna:

    2.5.1 Requirements

    Modern Vintage motorcycles must use a frame and engine case 10 years old or older, as determined by manufacturer’s model year. For 2011, the model year must be 2001 or prior.

    Change to:

    2.5.1 Requirements

    Modern Vintage motorcycles must use a frame and engine case for a model started in production 10 years or older, as determined by manufacturer's model year.

    For example for 2013, a yamaha 2003 R6 model started 10 years ago is legal, also should be legal are the 2004 and 2005, as they are the same model with no updates that are not currently banned from updating the 2003 model to.
    Tony Baker #21

    Sponsored by:
    Vickery Motorsports, Short Bus Race Team, 406 Racing Michelin, Vortex, PitBull, Driven, Third Bridge Wines, Imodium A-D

  5. #5
    Senior Member Expert
    Join Date
    Mar 2005
    Location
    The Local Topless Bar!
    Posts
    2,358
    Quote Originally Posted by T Baggins
    From Frank Diranna:

    2.5.1 Requirements

    Modern Vintage motorcycles must use a frame and engine case 10 years old or older, as determined by manufacturer’s model year. For 2011, the model year must be 2001 or prior.

    Change to:

    2.5.1 Requirements

    Modern Vintage motorcycles must use a frame and engine case for a model started in production 10 years or older, as determined by manufacturer's model year.

    For example for 2013, a yamaha 2003 R6 model started 10 years ago is legal, also should be legal are the 2004 and 2005, as they are the same model with no updates that are not currently banned from updating the 2003 model to.
    the 2005 R6 has inverted forks, larger brake rotor on the front, and different Master Cyl.
    Jeff Brown, #277
    "What can Brown do for you!"
    2011-2022 New Rider Director
    2008-2010 MRA Rider Representative

  6. #6
    Senior Member Expert
    Join Date
    Mar 2005
    Location
    The Local Topless Bar!
    Posts
    2,358
    Quote Originally Posted by peteyt328
    FOR SUPERSPORT CLASSES

    2.2.2 Class Equipment Requirements
    G. Only DOT approved tires or non-DOT full rain tires may be used. The original molded tread pattern cannot be modified. Non-DOT slicks and non-DOT intermediate tires are not allowed.

    **NEW**
    2.2.2 Class Equipment Requirements
    G. There are no restrictions on tires. Non-DOT slicks and intermediate tires along with full rains may be used.

    Now that's funny!!....

    Here we go AGAIN.... :roll: 8) Thanks Pete
    Jeff Brown, #277
    "What can Brown do for you!"
    2011-2022 New Rider Director
    2008-2010 MRA Rider Representative

  7. #7
    Senior Member Expert
    Join Date
    Jun 2008
    Location
    Aurora, CO 80018
    Posts
    672
    Quote Originally Posted by Throttleroller277
    Quote Originally Posted by peteyt328
    FOR SUPERSPORT CLASSES

    2.2.2 Class Equipment Requirements
    G. Only DOT approved tires or non-DOT full rain tires may be used. The original molded tread pattern cannot be modified. Non-DOT slicks and non-DOT intermediate tires are not allowed.

    **NEW**
    2.2.2 Class Equipment Requirements
    G. There are no restrictions on tires. Non-DOT slicks and intermediate tires along with full rains may be used.

    Now that's funny!!....

    Here we go AGAIN.... :roll: 8) Thanks Pete
    It is his inner cheater coming out. Stepping up to a 1000 and now wanting tires too.... geez, needy.
    Kevin #28

    '07 Yamaha R6

  8. #8
    Resident T-Bagger Expert T Baggins's Avatar
    Join Date
    Mar 2005
    Location
    Somewhere between here and Elizabeth
    Posts
    5,164
    Quote Originally Posted by Throttleroller277
    Quote Originally Posted by T Baggins
    From Frank Diranna:

    2.5.1 Requirements

    Modern Vintage motorcycles must use a frame and engine case 10 years old or older, as determined by manufacturer’s model year. For 2011, the model year must be 2001 or prior.

    Change to:

    2.5.1 Requirements

    Modern Vintage motorcycles must use a frame and engine case for a model started in production 10 years or older, as determined by manufacturer's model year.

    For example for 2013, a yamaha 2003 R6 model started 10 years ago is legal, also should be legal are the 2004 and 2005, as they are the same model with no updates that are not currently banned from updating the 2003 model to.
    the 2005 R6 has inverted forks, larger brake rotor on the front, and different Master Cyl.
    Right... but since Mod Vintage is a Superbike class - you COULD put a 2005 front end on a 2003 or 2004 (or 1999 for that matter) if you wanted anyway...

    I think this would be hard to police. I have another suggestion which I'll post later.
    Tony Baker #21

    Sponsored by:
    Vickery Motorsports, Short Bus Race Team, 406 Racing Michelin, Vortex, PitBull, Driven, Third Bridge Wines, Imodium A-D

  9. #9
    Senior Member Expert
    Join Date
    Jul 2010
    Location
    Silverthorne, CO
    Posts
    646
    Moved to a new post
    Dennis Stowers MRA #151
    2021-2023 MRA BoD Rider Representative - Rulebook
    Absolute Moto-Michelin
    Speedin' Motorsports

  10. #10
    Senior Member Amateur
    Join Date
    Jun 2010
    Posts
    315
    Removed
    MRA #88

  11. #11
    Mohammer Time! Expert
    Join Date
    Aug 2005
    Posts
    1,253
    if you guys want to debate the proposed rules open a new thread.

  12. #12
    Resident T-Bagger Expert T Baggins's Avatar
    Join Date
    Mar 2005
    Location
    Somewhere between here and Elizabeth
    Posts
    5,164
    Modern Vintage

    Same proposal as Frank above for 2.5.1 but with a few exceptions:

    Ten MODEL YEAR rule - with frame and engine as the sole determinant. Since the forks and everything else are open for swap anyway, who cares...? The '99 thru '02 R6 would be considered a '99 model year. The '03 thru '05 as well as ALL R6S's (regardless of year) are all identical frame and engine, so they would all be considered '03 model year. I use R6 as the example because thats the bike I know...

    I would combine the two classes simply into Modern Vintage Open. Currently there are only a handful of bikes in each class and a well ridden 600 could still win the class anyway. If signups warrant, we could run them in two waves as we did in the past. MVO in the front, MVU second wave.

    Additionally I would suggest we "freeze" it at 2003 model year for five years and then in 2018 change the rule to a 15 model year rule because the 2005 model year bikes are & 2006 are currently competitive in all of our Modern Classes. This is no longer in the spirit of Modern Vintage imo...

    This change would make as much as 1/3 of the bikes in our paddock eligible for modern vintage, and give our guys on older (but not yet old) bikes a place to run competitively.
    Tony Baker #21

    Sponsored by:
    Vickery Motorsports, Short Bus Race Team, 406 Racing Michelin, Vortex, PitBull, Driven, Third Bridge Wines, Imodium A-D

  13. #13
    Resident T-Bagger Expert T Baggins's Avatar
    Join Date
    Mar 2005
    Location
    Somewhere between here and Elizabeth
    Posts
    5,164
    New Class suggested by Martin Jarusek

    Formula Main Jet

    Only rule - Bikes must have been originally produced carbureted, and STILL be carbureted. Everything else is wide open.

    If we also combined the two MV classes as I've suggested above, then there would be an open spot in one of the two-wave classes that the MV classes ran in. That's where FMJ would go...
    Tony Baker #21

    Sponsored by:
    Vickery Motorsports, Short Bus Race Team, 406 Racing Michelin, Vortex, PitBull, Driven, Third Bridge Wines, Imodium A-D

  14. #14
    Senior Member Amateur
    Join Date
    Mar 2011
    Location
    Kennewick, WA
    Posts
    159
    Can we get some new allowances for the 250's? Maybe a 250GP class added?

  15. #15
    Resident T-Bagger Expert T Baggins's Avatar
    Join Date
    Mar 2005
    Location
    Somewhere between here and Elizabeth
    Posts
    5,164
    Proposed revision to 250 Production Cup:

    New name "Production Cup"

    two waves, two classifications - would run in current 250 production cup slots.

    400
    &
    250

    Otherwise same rules.

    This is to allow for the coming of the KTM 350 & 390, as well as the new Ninja 300 & 400 - and any other surprise little bike that might appear in the next few years. Honda and Yamaha have little bikes that are hot in other markets.. who knows they just might end up over here.
    Tony Baker #21

    Sponsored by:
    Vickery Motorsports, Short Bus Race Team, 406 Racing Michelin, Vortex, PitBull, Driven, Third Bridge Wines, Imodium A-D

  16. #16
    Senior Member Amateur
    Join Date
    Sep 2005
    Posts
    226
    I got a couple of rule change suggestions:

    1) existing rule for Superbike class requirements 2.3.1.A. Frame and engine cases must be from the same production model motorcycle, except for single cylinder motorcycles, which may use any frame.

    Change to: Frame and engine cases must be from the same production model motorcycle, except for twin and single cylinder motorcycles, which may use any frame.

    2) existing rule for Technical requirements 5.2.2.P. Supercharging (including turbo charging and blowers) is not allowed, except in Race of the Rockies.

    Change to: Supercharging (including turbo charging and blowers) is not allowed, except in Grand Prix (section 2.4) classes.

  17. #17
    Senior Member Expert
    Join Date
    May 2005
    Posts
    2,416
    Remove section 2.3.1 D

    Reducing engine size of machines from stock displacement to meet lower class displacement limits is NOT allowed. (e.g., a bike that is a Heavyweight in origin can NOT be re-sized for Middleweight competition.)
    MRA Expert #69
    Sponsored by: Chicane Instruction
    STM Suspension, Speedin' Motorsports
    Northern Colorado Euro Motorcycles
    Boulder Motorsports, Sol Performance Pirelli
    Angry Marmot Motorsports
    Sarah, Aaron and David

  18. #18
    Mohammer Time! Expert
    Join Date
    Aug 2005
    Posts
    1,253
    7.3 Point Awards
    Points will be awarded by the following formula:

    1st 36 16th 15
    2nd 32 17th 14
    3rd 29 18th 13
    4th 27 19th 12
    5th 26 20th 11
    6th 25 21st 10
    7th 24 22nd 9
    8th 23 23rd 8
    9th 22 24th 7
    10th 21 25th 6
    11th 20 26th 5
    12th 19 27th 4
    13th 18 28th 3
    14th 17 29th 2
    15th 16 30th 1



    Suggested change:
    7.3 Point Awards
    Points will be awarded by the following formula:

    1st 60 16th 15
    2nd 50 17th 14
    3rd 42 18th 13
    4th 36 19th 12
    5th 32 20th 11
    6th 30 21st 10
    7th 28 22nd 9
    8th 26 23rd 8
    9th 24 24th 7
    10th 22 25th 6
    11th 20 26th 5
    12th 19 27th 4
    13th 18 28th 3
    14th 17 29th 2
    15th 16 30th 1

  19. #19
    Mohammer Time! Expert
    Join Date
    Aug 2005
    Posts
    1,253
    I would like to have a quick discussion on flags, so I can clean up the rulebook.

  20. #20
    Mohammer Time! Expert
    Join Date
    Aug 2005
    Posts
    1,253
    2.2.2.C.l

    Construction must be of plastic or fiberglass composites, but not other fiber composites such as carbon or aramid fiber

    Suggestion: Delete this requirement all together. Modern fiberglass bodywork is as light or lighter than any other material.

  21. #21
    rohorn
    Guest
    Delete 5.2.2-S, since it is the same as 5.2.2-D. Unless, of course, it is twice as important as the rest of the rules in 5.2.2.

  22. #22
    Senior Member Expert
    Join Date
    Mar 2008
    Location
    Evergreen
    Posts
    639
    Quote Originally Posted by T Baggins
    New Class suggested by Martin Jarusek

    Formula Main Jet

    Only rule - Bikes must have been originally produced carbureted, and STILL be carbureted. Everything else is wide open.

    If we also combined the two MV classes as I've suggested above, then there would be an open spot in one of the two-wave classes that the MV classes ran in. That's where FMJ would go...
    Thanks Tony
    I will have hard time to write this down in proper English
    Hope this and the combined MV classes will get some support!
    Martin J. #73 - Motoforza Racing Team
    Motoforza bodywork www.motoforzafairings.com

    Cell: 303-518-5650
    http://i278.photobucket.com/albums/k...gpic3918_6.jpg

  23. #23
    Senior Member Expert DOUBLE A's Avatar
    Join Date
    Mar 2009
    Location
    Brighton
    Posts
    678
    I vote to change/bend the rule that says if any racer falls down during a race you cannot rejoin that race.

    This rule would only be for expert racers in the ROR class only, the rider must be able to continue safely & must have an MRA official in some fasion or cornerworker visually check out your motorcycle for obvious leaks or damage that would make contining an issue.
    AMA #395 / AARONHERSH.COM / SCORPION EXO / Madmoto / MOTOREX / WICKED PHOTOS / GEARZY / Vortex / OGIO / Leo Vince / Galfer / Pilot / MotionPro / Chicken Hawk / ODI Grips
    "The faster I go the prettier the girls look" - Nicky Hayden

  24. #24
    Resident T-Bagger Expert T Baggins's Avatar
    Join Date
    Mar 2005
    Location
    Somewhere between here and Elizabeth
    Posts
    5,164
    Get rid of the Heavyweight classes altogether.

    HW End
    HWSS
    HWSB

    grids are 99.99% 600's anyway....

    then, in theory we could run

    LW End
    MW End
    Open End

    as separate classes and still be done same time on Saturday which would please everyone (but most especially Corner Workers).

    Of course we'd have to look at revenue and see if that would be shooting ourselves in the foot - but seems weird to have classes that nobody actually makes/owns bikes for any more...
    Tony Baker #21

    Sponsored by:
    Vickery Motorsports, Short Bus Race Team, 406 Racing Michelin, Vortex, PitBull, Driven, Third Bridge Wines, Imodium A-D

  25. #25
    President Expert
    Join Date
    Mar 2005
    Location
    Nunya
    Posts
    4,441
    I'll take Tony's suggestion one step further and post what I proposed 2 years ago which is getting rid of the HW classes and adding an additional MW and Open class to balance out any revenue loss:


    Proposed MRA Class Changes

    (Current) Section 1 – RACE CLASS LIST
    The MRA will run the following classes at each regular event. (Classes may be combined
    into a single race but will be scored separately.):
    Novice (GTO/GTU)
    Amateur (GTO/GTU)
    • Modern Vintage (GTO/GTU)
    • Middleweight Supersport & Superbike
    • Heavyweight Supersport & Superbike
    • Open Supersport & Superbike
    • Lightweight Grand Prix
    • Super Twins (GTO/GTU)
    • Colorado Class
    • Race Of the Rockies (GTO/GTU)
    • Ladies Of the Rockies
    • Endurance Classes (Lightweight, Middleweight, Heavyweight, and
    Open)
    • Sportsman
    • Superstreet class

    (Proposed) Section 1 – RACE CLASS LIST
    The MRA will run the following classes at each regular event. (Classes may be combined
    into a single race but will be scored separately.):
    Novice (GTO/GTU)
    Amateur (GTO/GTU)
    • Modern Vintage (GTO/GTU)
    • Middleweight Supersport, Modified Production & Superbike
    • Open Supersport, Modified Production & Superbike
    • Lightweight Grand Prix
    • Super Twins (GTO/GTU)
    • Colorado Class
    • Race Of the Rockies (GTO/GTU)
    • Ladies Of the Rockies
    • Endurance Classes (Lightweight, Middleweight, Heavyweight, and
    Open)
    • Sportsman
    • Superstreet class

    (Currently)2.1 Sprint class general guidelines
    A. Expert classes are designated as Supersport, Superbike, Grand Prix, and Modern
    Vintage GTO and GTU.
    B. Amateur classes are designated as GTO and GTU.
    C. Novice classes are designated as GTO and GTU.
    D. Novice racers may enter and be scored in Novice and Amateur classes.
    E. Beginner classes are designated as Superstreet classes.
    F. Displacement, engine, chassis configuration, age, and the original
    manufacturer’s intended use and availability determine motorcycle eligibility for
    a given class.
    G. A motorcycle may only be entered in a class in which all eligibility requirements are met.
    H. If a motorcycle is entered in more than one class, it must conform to the
    requirements for each class in which it is entered.
    I. It is the racer’s responsibility to only enter classes in which his or her
    motorcycle is eligible.

    (Proposed)2.1 Sprint class general guidelines
    A. Expert classes are designated as Supersport, Modified Production, Superbike, Grand Prix, and Modern
    Vintage GTO and GTU.
    B. Amateur classes are designated as GTO and GTU.
    C. Novice classes are designated as GTO and GTU.
    D. Novice racers may enter and be scored in Novice and Amateur classes.
    E. Beginner classes are designated as Superstreet classes.
    F. Displacement, engine, chassis configuration, age, and the original
    manufacturer’s intended use and availability determine motorcycle eligibility for
    a given class.
    G. A motorcycle may only be entered in a class in which all eligibility requirements are met.
    H. If a motorcycle is entered in more than one class, it must conform to the
    requirements for each class in which it is entered.
    I. It is the racer’s responsibility to only enter classes in which his or her
    motorcycle is eligible.

    (Current)2.2.3 Class Displacement and Configuration Limits*SUPERSPORT
    A. Middleweight Supersport
    • Up to 600cc four cylinder
    • Up to 650cc pre-1984 four cylinder
    • Up to 750cc three cylinder, four stroke
    • Up to 850cc two cylinder, four stroke, three or more valves per cylinder
    • Up to 904cc two cylinder, four stroke, two valves per cylinder, air cooled
    • Unlimited displacement pushrod, two cylinder, four stroke, two valves per
    cylinder, air cooled
    B. Heavyweight Supersport
    • Up to 750cc four cylinder
    • Unlimited displacement three cylinder four stroke or two cylinder air cooled
    four stroke
    • 1125cc or less two cylinder, liquid cooled, four stroke
    C. Open Supersport
    • Unlimited displacement

    (Proposed)2.2.3 Class Displacement and Configuration Limits*SUPERSPORT
    A. Middleweight Supersport
    • Up to 600cc four cylinder
    • Up to 650cc pre-1984 four cylinder
    • Up to 750cc three cylinder, four stroke
    • Up to 850cc two cylinder, four stroke, three or more valves per cylinder
    • Up to 904cc two cylinder, four stroke, two valves per cylinder, air cooled
    • Unlimited displacement pushrod, two cylinder, four stroke, two valves per
    cylinder, air cooled
    B.Open Supersport
    • Unlimited displacement

    (New)2.3 Modified Production classes(*Current classes starting with 2.3 Superbike will be moved down in rulebook i.e. 2.4 Superbike Classes)

    (New)2.3.1 Class Requirements
    Modified Production motorcycles shall be limited to those manufactured for street use in the United
    States. Such motorcycles must be readily available to the general public from established
    manufacturers, distributors and/or dealers. Motorcycles must comply with manufacturers' published
    specifications for given models and be fitted with all original equipment. Along with the following
    items, all Motorcycle Technical Requirements and Supersport rules shall apply.
    1. Modifications introduced by a manufacturer to a basic model configuration subsequent to the
    original introduction of the model may be fitted within the limits of normal assembly procedures.
    External welding, brazing or machining for this purpose is not permitted.
    2. Modification of engine case(s) and/or cylinder castings is prohibited, except for the repair of crash
    damage.
    3. Internal engine modifications are permitted as long as the class displacement limits are not
    exceeded and the stroke is not changed. Internal transmission ratios may not be changed.
    4. Clutch lining material and number of plates may be changed.
    5. The exhaust system may be repositioned for ground clearance or an aftermarket racing exhaust
    may be fitted.
    6. The ignition coil, condenser and related wiring and fittings may be changed. Accessory electronic
    ignition systems may be used provided they are available to the general public. Generators and
    alternators may not be removed and must be in working order (individual part failure during event
    weekend exempt). Starter may be removed.
    7. Chain and/or sprockets (including sprocket material) may be changed. Ring and pinion assemblies
    may be changed.
    8. Instruments may be added, removed, or modified.
    9. The handlebar type may be changed, but they must mount in the original manner. Handlebars and
    tank must have a minimum of one (1) inch clearance at full lock.
    10. The seat may be changed. Footrests may be changed (rear sets allowed) or modified.
    11. Bodywork is open, providing 5.2 Motorcycle Technical Requirements are followed including use of any
    windshield.
    12. Aftermarket wheels may be fitted if they are compatible with the original, unmodified brake
    components. Rear Sprocket hubs and wheel spacers provided with approved aftermarket wheels
    are allowed, unless the swing arm, forks, or brake mounting require modification to accommodate
    their use. Slight chamfering of spacers, calipers, caliper mounts, forks, or chain adjusters for the
    sole purpose of smooth wheel changing is allowed. Wheel size is open.
    13. Stock brake calipers specific to model are required. Stock rear brake rotors may be drilled and/or
    machined. Aftermarket rotors replicating o.e.m. diameter may be used. (Ex.: Wave Rotors)
    14. Brake lining material may be changed and brake hub assemblies may be drilled for ventilation.
    Braided steel brake lines are allowed.
    15. Brace tubes and gussets may be added to the frame or swing arm, but no original tubes may be
    removed or bent.
    16. Rear swing arm may be stiffened and the swing arm pivot may be modified, but the frame may not
    be altered, except as provided in #15 above.
    17. Carburetors may be up‐dated or backdated to any applicable manufacturers' specifications for
    that basic model. Turbo‐charging and/or changes to the basic type of fuel induction (fuel injection
    vs. carburetors) are not considered such updating or backdating.
    18. Carburetor bodies may not be modified but may be fitted with normally replaceable components
    for jetting purposes.
    19. Air box may be modified or removed. Air cleaners and intake ducting may be modified, added,
    replaced, or removed. Velocity stacks may be fitted.
    20. Oil injection pumps may be removed.
    21. Brake calipers, discs, and fork tubes may not be exchanged for aftermarket or larger model
    assemblies (such as 1000cc front end on a 750cc bike).
    22. Tires are open; D.O.T. or racing slicks is permitted.
    23. Aftermarket triple clamps made for the specific model of bike may be used. (Stock forks as above
    in #21 must be utilized).

    (New)2.3.3 Class Displacement and Configuration Limits
    A. Middleweight Modified Production
    • Up to 600cc four cylinder
    • Up to 650cc pre-1984 four cylinder
    • Up to 750cc three cylinder, four stroke
    • Up to 850cc two cylinder, four stroke, three or more valves per cylinder
    • Up to 904cc two cylinder, four stroke, two valves per cylinder, air cooled
    • Unlimited displacement pushrod, two cylinder, four stroke, two valves per
    cylinder, air cooled
    B. Open Modified Production
    • Unlimited displacement

    (Current)2.3.2 Class Displacement and Configuration Limits **Superbike
    Class displacement limits are set as follows:
    1. Middleweight Superbike
    • Up to 640cc four cylinder four stroke, three or more valves per cylinder
    • Up to 850cc two cylinder, four stroke, three or more valves per cylinder
    • Up to 750cc three cylinder, four stroke, three or more valves per cylinder
    • Unlimited displacement two or three cylinder four stroke, two valves per cylinder
    • Up to 250cc one or two cylinder two stroke, water cooled, unlimited origin
    • Up to 1050cc four cylinder four stroke, two valves per cylinder
    • Up to 510cc two or more cylinder two stroke, water cooled
    • Unlimited displacement two stroke, air cooled
    • Unlimited displacement single cylinder
    2. Heavyweight Superbike
    • 390cc to 750cc four cylinder four stroke, three or more valves per cylinder
    • Over 390cc four cylinder four stroke, two valves per cylinder
    • Over 485cc three cylinder four stroke
    • Over 485cc two cylinder air cooled four stroke
    • Over 485cc and 1125cc or less two cylinder, liquid cooled, four stroke
    • Over 330cc two or more cylinder two stroke
    • Over 450cc single cylinder four stroke
    3. Open Superbike
    • Over 485cc two or more cylinder

    (Proposed)2.4.2 Class Displacement and Configuration Limits **Superbike
    Class displacement limits are set as follows:
    1. Middleweight Superbike
    • Up to 640cc four cylinder four stroke, three or more valves per cylinder
    • Up to 850cc two cylinder, four stroke, three or more valves per cylinder
    • Up to 750cc three cylinder, four stroke, three or more valves per cylinder
    • Unlimited displacement two or three cylinder four stroke, two valves per cylinder
    • Up to 250cc one or two cylinder two stroke, water cooled, unlimited origin
    • Up to 1050cc four cylinder four stroke, two valves per cylinder
    • Up to 510cc two or more cylinder two stroke, water cooled
    • Unlimited displacement two stroke, air cooled
    • Unlimited displacement single cylinder
    2. Open Superbike
    • Over 485cc two or more cylinder


    To sum this up, I am proposing we remove Heavyweight Supersport & Superbike and replace with 2 new classes: Middleweight Modified Production and Open Modified Production. The motorcycle requirements for these 2 new classes fall between supersport rules and superbike rules. Basically you are allowed engine modifications but must keep stock displacement, you can run after market wheels and slicks but must keep stock forks and calipers.
    My reasoning for this is that this past season we averaged one 750cc bike and two 999cc vtwins in the HW classes. The grids were basically all 600's. Open Supersport had 600 riders too. By doing this we provide another true Middleweight class plus an additional Open class. 600 riders will still have the same number of classes they can run but 1000 riders will have an additional class they can run.
    Tell me what you think.
    MRA #29

Page 1 of 3 123 LastLast

Similar Threads

  1. Replies: 15
    Last Post: November 6th, 2012, 10:29 PM
  2. Replies: 7
    Last Post: November 28th, 2011, 09:23 PM
  3. 2012 Rule Change Suggestions
    By TRK in forum Rules & Tech
    Replies: 39
    Last Post: October 7th, 2011, 04:43 PM
  4. Rule Change Suggestions for 2009
    By dave.gallant in forum Rules & Tech
    Replies: 92
    Last Post: November 22nd, 2008, 08:46 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •