It's Supercross TimeNew AMA RulesWith Honda's CRF150R adding to the ever-confusing state of affairs in the world of displacements, the AMA is trying to iron out solutions. As of press time, these are only proposed rule changes and won't go into effect until officially approved by the AMA board of directors. Here is a summary of the two rules, submitted by the AMA Congress, that have drawn the most questions from racers, families and teams:In motocross only, new displacement limits would be applied to Class 2 (100cc-144cc), Class 3 (145cc-250cc) and Class 4 (251cc and up). This means that both two-stroke and four-stroke motorcycles would be limited to the same maximum displacement and the limits would apply to A, B and C classes, thus eliminating a four-stroke cc advantage.In Youth racing, the displacement limits would be changed in the Supermini (12-15) and Class 16 (86cc-125cc age 12-15) classes to allow 75cc-150cc four-stroke motorcycles (such as the Honda CRF150R) in addition to the current two-stroke limits. In Supermini, the maximum displacement for two-strokes would be increased to 112cc.Will these rules stick? Who knows? Hop on the message boards at www.dirtrider.com to voice your opinion and check out www.amadirectlink.com for updated news as the motocross world, as we know, it is about to change.Ama Sx SeriesIf any of these 2007 AMA/AMP'd Mobile Supercross rounds are in your neighborhood, make sure you check them out. If they're not in your neighborhood, try to catch them anyway...they're worth the trip (can you hear the supercross voice yet?). Get your tickets at local Yamaha dealers or online at www.supercrossonline.com.January 6, Anaheim, CAJanuary 13, Phoenix, AZJanuary 20, Anaheim, CAJanuary 27, San Francisco, CAFebruary 3, Anaheim, CAFebruary 10, Houston, TXFebruary 17, San Diego, CAFebruary 24, Atlanta, GAMarch 3, St. Louis, MOMarch 9, Daytona Beach, FLMarch 17, Orlando, FLMarch 24, Indianapolis, INMarch 31, Irving, TXApril 21, Detroit, MIApril 28, Seattle, WAMay 5, Las Vegas, NVLetter Rip!You like sending mail, and we like reading it. From the way I see things, this is a pretty good little system we have going on here! Any time you feel a need to spew out an opinion, question, suggestion or rant, Letter Rip is the place to do it. Be warned, though, that anyone who sends week-old roadkill with his or her letter will automatically forfeit a response. You know who you are. OK, any more skunks? No? Letter Rip, then!Please send all mail to drmail@primedia.com or Dirt Rider Magazine, Attn.: Letter Rip! 6420 Wilshire Blvd., Los Angeles, CA 90048. All letters may be edited at our discretion. While there aren't enough hours in the day for us to answer every letter received, we will at least read them all aloud from the top of our office building.Laughing StockI'm not sure which category this would fall under, so I'm just throwing this out there for anyone interested. Catch! I would very much like to see a story with the top riders (Carmichael, Stewart, Reed, McGrath, Pastrana, et al) in a race with their sponsor's stock bikes. No tweaking or adjusting, just racing the bike as-is off the showroom floor. Maybe this has already been suggested or actually done, but if it has, then I missed it. Thank you for all the information you provide in your magazine; I have learned quite a bit about riding and maintaining my bike. I have to say that I always look forward to Lewis's Jimmy-Rigged section. He makes me laugh.-Denise StringhamWe would love to do this story, but well, the riders wouldn't. Not that they don't believe in or feel that the brand they ride for isn't the best, but the demands these guys would make on a bike, stock bikes are not set up for it. And racers being racers, they would still try and push themselves and their bikes past their limits, and scary things could and would happen. But if any top racers are reading this and are game, we have the pages in Dirt Rider ready to go! Also, I'm glad you like the column. I make a lot of people laugh, but it is usually behind my back. Thanks for being so up front.-Jimmy LewisTippy ToesDoes the Pro Moto Billet CRF250R (Nov. '06) have modified foam on the seat? Factory Effex offers both stock and tall versions for my bike (it's the same model and year), yet the PMB bike looks to sit 11/42-1 inch lower than mine across the top. I'm height challenged at 5 feet 10 inches, and it would be so nice to be able to touch the ground on both sides for trail riding here in North Carolina/South Carolina. I do not want to lower or affect my suspension with links or other mods, as I do still piddle in MX. With race sag and the front fork up 5mm in the clamps, I'm on the tip of my toes in full gear.-Hal ConnellyThe PMB bike had a stock-height seat, so lowering the bike any further would be tough. We run about 105mm of race sag for moto, but maybe you could try 110 when you are riding off-road. Since the fork is up in the clamps, the bike should steer fine, especially when you are in sandy areas. One last question, are you checking the race sag with your feet on the pegs as Paul Thede at Race Tech recommends? We generally check it with our toes touching, and the measurement will be a little higher in the rear if you check it with your feet up.-Karel KramerNoiseYour stand on loud pipes is commendable-I love that you will no longer test loud pipes! Good for you, it is about time. By being in the business of publishing Dirt Rider magazine, it is in your (and our) best interests not to support any company that is responsible for killing our sport by manufacturing loud pipes. What will it take to get the exhaust manufacturers to understand that by building loud pipes they are killing their own market? If they keep building loud pipes, they will keep closing down the few remaining riding areas that we have. Then with nowhere to ride, who will they sell their lousy, inferior products to? Those manufacturers (and the people who buy their loud products) are the number-one enemy of dirt bike enthusiasts everywhere. They do not deserve our support. We need a complete boycott on their products; we need to completely ban anyone from using their products on our trails and tracks. No one who loves this sport should advertise or purchase their products. They are the enemy! They quickly close more riding areas then the greenies ever could. Collectively, we need to reward the responsible manufacturers that make quiet performance products. They are helping to protect the future of our sport, and they deserve our support. Thank you for helping to lead the way!-Rob Pafford, British Columbia, CanadaThanks for the props and enthusiasm, Rob. The impact of noisy bikes on our riding areas is significant, but I wouldn't go so far as to say the pipe manufacturers are our number-one enemy. A lot of them make good, quiet pipes; we just need more people buying them. You could just as easily blame the yahoos who go ripping on their 125s through the dirt lot behind their cul-de-sacs or the group of people who think it's funny to spin doughnuts in front of hikers. At this point in the game, we all need to work together to preserve our sport, and this includes the industry, the riders and, as you stated, exhaust companies. It's everyone's problem and everyone's responsibility. Thanks for showing some passion.-Chris DenisonIn The Next Issue Of Dirt Rider2oo7 45O MX ShootoutThe most in-depth and complete test in DR history.Off And On Road?KTM's EXC series joins the street-legal crowd in our first test.Buck Twenty-FiveWe buy used 125s and see if motocross can be cheap again!Wrs In ParadiseYamaha's 2007 off-roaders finally arrive.Plus:* Endurocross, Last Man Standing and ISDE coverage* Long Haul updates* Pro Secrets* And more dirt-riding debauchery than you can shake a gallon of premix at.
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