• YOU GOTTA SEE THIS! MXA’S JOSH MOSIMAN FLIES A F-16 UPSIDE-DOWN • THE L.A. COLISEUM IS ONE OF THE THREE SUPERMOTOCROSS PLAYOFF TRACKS, BUT WHY COULDN’T ONE BE ON AN OUTDOOR NATIONAL TRACK? This is the track where Red Bull hosted the Red Bull X-Fighters event before the event. If they insist on calling it “SuperMotocross” then wouldn’t it make sense to hold one of the three playoff rounds on an actual motocross track (and we aren’t talking about Pala). That would make “motocross” a bigger part of the three-race SuperMotocross play-offs. Otherwise, they should just call it the “SuperSupercross”playoffs. This is what it looked like when all the bleachers were in place. It would be easier and cheaper to build a Supercross-style section at an outdoor facility  than in a stadium— and they could still use a legitimate portion of the outdoor track to at least give a nod to and important segment of the sport. All they would need is bleachers (and the sun is still up in September). The other round could be at a Super Speedway track, like Atlanta Motor Speedway, which combines Supercross with some of the speeds of motocross. 2023 SUPERMOTOCROSS PLAYOFF SCHEDULE Sept. 9…TBA Date TBA…TBA Oct. 14: Los Angeles, CA • HAESEKER RACING KTM 150SX VIDEO FOR THE PASHA SHOOTOUT: EPISODE 1 • MXA PHOTO OF THE WEEK: FIRST, YOU NEED A RIDER, THEN, A SETTING SUN & FINALLY A WILLING BERM MXA’s Dennis Stapleton flew in from Kuwait in time to join the MXA gang put the 2023 YZ450F through its paces. We started at 7:00 a.m. and were still riding as the sun set—which gave Jon Ortner a chance to shoot this photo of Dennis in the dying of the light. Photo: Jon Ortner • TWISTED DEVELOPMENT KTM 150SX VIDEO FOR THE PASHA SHOOTOUT: EPISODE 2 • 10TH ANNUAL KURT CASELLI RIDE DAY ON DEC. 3 AT PALA The Kurt Caselli Foundation will host its 10th Annual Kurt Caselli Ride Day presented by Rocky Mountain ATV/MC, FMF and KTM on Saturday, December 3d, 2022 at Fox Raceway in Pala, California. • ROB ANDREWS “THE INSIDE LINE: RACING THE 500 WORLD CHAMPIONSHIPS” • 2022 FIRE & POLICE ELSINORE GRAND PRIX ON TUESDAY, DECEMBER 6…YES, TUESDAY For more information or to sign-up go to • MXA VIDEO: 2023 KAWASAKI KX250 VIDEO TEST • WHAT IS THE MXA WRECKING CREW UP TO? With Thanksgiving stealing a couple test days away from us, and the “Day in the Dirt revamping” the Glen Helen landscape, we went to Perris Raceway to get more time on our four 2023 125 two-strokes. Then we snuck back into Glen Helen to put some serious break-in time on our 2023 Yamaha YZ450F out of sight of the armed guards. Just kidding, we couldn’t use the National track, but the “Saturday at the Glen” track was just sitting there. Photo: Jon Ortner • MXA VIDEO: 2023 HUSQVARNA FC250 VIDEO TEST • MXA PRODUCT SPOTLIGHT: PRO-VUE PRESCRIPTION GOGGLES AVAILABLE IN 100% FRAMES Pro-Vue has their prescription lens system available in the new 100% Accuri Gen 2 OTG goggle, and it is the best yet. Available in a half a dozen frame colors including this cool neon orange, and about a dozen different lens tints. Contact Pro-Vue at (507) 534-1247 or at MXA VIDEO: 2023 KTM 300SX FUEL-INJECTED TWO-STROKE VIDEO TEST  • MXA TEAM TESTED: MOTOMASSAGER RECOVERY TOOL The MotoMassager was created to help riders by warming up muscles before riding for increased performance and by massaging the muscles after riding to speed up recovery. The MotoMassager is quiet and easy to take with you to the track or gym. The MotoMassager uses percussion therapy to increase blood flow in your muscles. Percussion therapy has been around for a while, but it has gained more traction in recent years. The electric gun works like a jackhammer, creating rapid bursts of pressure in concentrated, short-duration pulses. These quick bursts of pressure agitate any area of the body you put it on, creating deep muscle stimulation that helps loosen up muscles. The stimulation improves blood flow, which helps speed up recovery and reduce muscle soreness. For recovery, make sure to focus the gun on a sensitive area of your body, such as your forearms, upper arm, quadriceps (thigh muscles), hip flexor or IT bands (iliotibial bands). If one muscle is particularly tender after riding or working out, it’s likely your muscle has balled up so tightly to protect itself that it has formed a knot. This won’t repair itself quickly, because the knot is hindering blood flow in and out of the muscle. Blood is needed to bring nutrition to the muscle and to keep it hydrated. The increased blood flow also helps flush lactic acid from the sore area to speed up recovery time. The most common nemesis in motocross is arm pump, and everyone has struggled with it to some extent or another. Some top Pros have scars all down their forearms from having surgery to open up their fascia tissue in an attempt to combat arm pump. Even that procedure doesn’t always work. Arm pump can come from inadequate bike setup, bad technique, nerves, fatigue, holding your breath and countless other things. The MotoMassager, and percussion therapy guns like it, will never completely cure the issue of arm pump for everyone, but it can help by improving blood flow before and after riding. Plus, it’s a lot better than surgery. When you hammer a knot in your muscle, the idea is to break it up. Press and massage the muscle and then back off the gun so that blood flow can get in, then continue to press in again. Generally, people will experience significant initial release when using the massage gun, but because of this release, they often don’t continue to massage the area because it hurts. This leads to a relief that only lasts a little bit, and they miss out on the full benefits. Be sure to continue to massage the sore muscle, even after it feels better, to promote that blood flow. This technology has been around for over 10 years now, and odds are you’ve seen percussion therapy in commercial ads before. The MotoMassager isn’t an original product discovered by riders, but it does work well and it comes in at a competitive price point compared to other massage guns. The MotoMassager comes with six different-shaped attachments for customizing the massage. We preferred the standard ball fitment for most muscles and liked the flat tip for warming up muscles because it is less abrasive. The MXA test riders hadwo quibbles: First, the touchscreen display has a power button that can be confusing. It really acts as a start/stop button, because the on switch is actually on the bottom of the handle, next to the charging port. This didn’t make much sense. Second, the gun stops pulsing after five minutes, and you have to restart it again. DIGITS: $149.00— or MXA RATING: Before learning how to use the massage gun, our testers didn’t feel the full benefits because they would only use it for a couple of minutes at a time. Once they learned to spend more time focusing on one area, they noticed improvements in recovery, and now they continue to use it. • THE JEREMY MCGRATH STORY: IN HIS OWN WORDS AND THOSE OF HIS FRIENDS • MXA PRODUCT SPOTLIGHT: MOTOCROSS ACTION CASUAL WEAR MXA PREMIX T-SHIRT—$29.95 MXA VINTAGE T-SHIRT—$29.95 MXA JAPANESE LOGO T-SHIRT—$29.95 MXA 80s T-SHIRT—$29.95 To see more MXA T-shirts and all the available colors Click Here • MXA VIDEO: 2023 KAWASAKI KX450 VIDEO TEST • ON THE RECORD: COMPLETE TEST OF THE 2011 KTM 350SXF This test is from the November 2005 issue of Motocross Action Magazine. This 2011 KTM 350SXF test is from the September 2010 issues of MXA. Q: FIRST AND FOREMOST, IS THE 2011 KTM 350SXF GOING TO CHANGE THE MOTOCROSS WORLD? A: No. In truth, the 2011 KTM 350SXF is just another piece of the matrix of motocross. It is not going to wipe the 450cc motocross bike off the face of the Earth. It is not going to bring in a new era of mid-size engines. It is not a revolutionary idea (and if it is, then several other motocross manufacturers got there first, including, but not limited to, Husqvarna, ATK and the original Yamaha YZ400). It is essentially a niche motorcycle that fills a void. The KTM 350SXF is an interesting exercise, but if you think it will replace the 450cc motocross bike you are mistaken. Q: WHO IS THE MOST LIKELY KTM 350SXF BUYER? A: Given the way that the KTM 350SXF demands to be ridden, which we will get to in detail in a minute, it is not a plug-and-play replacement for a 450cc motocross bike. The 350SXF and its sibling, the 450SXF, are night-and-day different, which is surprising when they share so many components. If push came to shove, we’d say that there are three main buyers for the 2011 KTM 350SXF: (1) Vet riders: For a Vet class rider who would prefer to race a 250cc bike, but can’t afford to give up 20 horsepower to his 450-equipped competition, the 350SXF offers all the charms of a very fast 250, with the torque curve of a slow 450. Although there are spots on the dyno curve where it gives up as much a 11 horsepower to the 450SXF. (2) Play riders: When you aren’t bound by any rules, and are just looking for a fun bike to ride, the 350SXF is a little bit like owning a 450 at low rpm and a 250 at high rpm. (3) 250 transplants: For a kid coming straight out of the 250 class for the 450 class, the 350SXF offers the familiarity of a high rpm, pin it to win it, flat-out 250 four-stroke—without the arm-stretching blast and bulk of a 450. Q: IS THE 350SXF A BIG-BORE 250 OR A SLEEVED-DOWN 450? A: Neither. The 60-pound, five-speed, DOHC, finger follower, four-valve, 349.7cc engine shares the design concept of the 250SXF in terms of weight, compactness and design, but none of the parts.The fuel-injected, electric start, KTM 350SXF engine shares very few parts with its brothers. Q: WHAT IS THE BORE AND STROKE OF THE 250SXF, 350SXF AND 450SXF? A: The 250SXF bore and stroke is 76mm x 54.8mm, the 350SXF is 88mm x 57.5mm and the 450SXF is 97mm x 60.8mm. The compression ratio on the 350SXF is 13.5:1. Q: WHAT IS THE HEAD ANGLE OF THE 250SXF, 350SXF AND 450SXF? A: All three bikes have the same 26.5-degree head angle. Q: WHAT IS THE SUGGESTED RETAIL PRICE OF THE2011  250SXF, 350SXF AND 450SXF? A: The 2011 250SXF retails for $7699, the 350SXF goes for $8499 and the 450SXF sells for $8799. 2011 KTM 350SXF: KTM has always made bikes to fill niches. The 350SXF follows in the footsteps of the 150SX, 200XC and 300XC. It hits the Japanese brands where they ain’t. Q: IS THE 2011 350SXF FASTER THAN THE 2011 450SXF? A: No. Not even close. That isn’t to say that you couldn’t go faster on the 350SXF than you could on the 450SXF, but when the moments are frozen and pure performance is all that is measured, the 350SXF engine can’t hold a candle to the 450SXF engine. Q: HOW MUCH HORSEPOWER DOES THE 350SXF MAKE ON THE DYNO A: The 350SXF makes a respectable 46.94 horsepower at a very high 12,200 rpm. Q: HOW DOES THE HORSEPOWER OF THE 350SXF COMPARE TO THE 250SXF AND 450SXF? A: You don’t need to wear a deerstalker hat and smoke a pipe to figure out the answer to this question. It is elementary, my dear Watson. The 250SXF makes 38.25 horsepower, the 350SXF makes 46.94 horsepower and the 450SXF makes 53.92 horsepower. Rounded off, there is an 8 horsepower difference from the 250 to the 350 and from the 350 to the 450 (the 8 is a median number, in truth the gaps are larger above and below peak). Q: WHAT CAN WE LEARN FROM THE DYNO RUNS OF THE 250, 350 AND 450SXF’S? A: First and foremost, if you aren’t bound by a class structure (if you are a Vet racer or a professional practice rider), there is no reason to ever buy a 250cc four-stroke again. Why not? Because the dyno curve, rpm range and revvability of the KTM 350 is identical to that of the KTM 250SXF—only with 6 to 10 horsepower more at every spot along the curve. In essence, the 350 has a 250 power curve, but with a better-than-works 250F powerband. When it comes to comparing the 350SXF dyno curve to that of the KTM 450SXF, the 450 romps all over the 350 from 5000 rpm to, well, until the cows come home. At no point on the usable 450SXF powerband curve does the 350SXF make more horsepower than the 450. And, the 350SXF’s peak horsepower is at 12,200 rpm, while the 450SXF peaks at a much lower 8200 rpm. Mathematically, the KTM 350SXF is to the 250SXF what the 450SXF is to the 350SXF. Say what? Q: HOW GOOD IS THE POWERBAND ON THE MID-SIZE 2011 KTM 350SXF? A: It’s good and it’s bad. It’s focused and it’s confused. It is, as you would expect from a machine that is trying to meld two worlds, a confused powerband. It is very much a Dr. Jekyll and Mr. Hyde engine (or maybe two Dr. Jekylls without a Mr. Hyde). The first personality is from low to mid. Off the bottom and into the mid-range, the 350SXF has a nice torquey feel. When it is on the track all by itself it feels like a 450, but it runs very much like a 1998 Yamaha YZ400. Smooth, tractable, pleasant and metered. Not fast, but usable. It feels like a 450, until you ride a 450 at the same rpm range—then it feels like a 350. The second personality shows itself as the engine climbs into the top end. Unlike a 450, the 350SXF makes all of its serious horsepower above 10,000 rpm. Since it makes its most horsepower as the last rpm is wrung out of the engine at 12,200 rpm, you have to take it to the rev limiter if you want to make the 46.94 horsepower work for you (because at every rpm below max, it makes less and less horsepower). To be successful you have to rev it…really rev it. Q: WHAT IS THE BEST WAY TO RIDE THE 2011 KTM 350SXF? A: Flat out. Think of it as a 250 four-stroke and ride it accordingly. Rev it out. Don’t shift until you hit 12-two. Never lug it down on the torque curve (unless you are going to or from the starting line). This bike is not a replacement for a 450cc motocross bike; it is closer to what a works 250 engine feels like (only it isn’t legal in the 250 class). KTM’s fuel pump (upper right) is half the size of the fuel pumps on other EFI bikes.