• THIS WEEK IN MXA WITH JOSH MOSIMAN: 2022 YZ250 TWO-STROKE FUN & TESTING TRIPLE CLAMPS
• MXA TEAM TESTED: MOTO TASSINARI VFORCE 4R REED VALVE
The VForce 4R reed valve system is the next step up from the VForce 3, which was a successful two-stroke reed valve system for over 15 years. With a completely new design that has increased the reed-tip surface by 10 percent, the VForce 4R is able to improve performance and durability for your two-stroke engine.
DIGITS: $168.00.— www.mototassinari.com or (603) 298-6646.
Two-stroke engines suck their fuel/air mixture through the intake tract into the engine when the piston rises, creating a vacuum in the crankcase. As the piston descends, it forces the mixture up through the transfer ports into the combustion chamber. The reed valve’s job is to be a one-way check valve that prevents air/fuel backwash from spilling back into the intake instead of going entirely up the transfer ports.
Starting in 2004, the KTM SX two-stroke models came stock with a VForce 3 reed valve system. KTM sourced the Moto Tassinari VForce reed valve until 2014 when they spec’d their own proprietary reed valve, borrowing ideas from Moto Tassinari’s twin-V design and eight petals. KTM copied the VForce 3 valve design and, ironically, started buying Boyesen’s RC2 performance-weave carbon fiber petals for it in 2014.
The Moto Tassinari VForce 4R reed valve system has an all-new manifold, reed cage and air-guide system, making it completely different from the VForce 3. Additionally, it has an all-new reed petal resin system, which is clearly visible to the eye. The twin-V has an extra stopper on each side. This is used for holding the reeds in place and managing the stress put onto the carbon fiber petals by not allowing them to open too far and accidentally stay open. The reed tip surface has increased by 10 percent over the former VForce 3 systems, which equates to more air flow. New pre-curved reed petals ensure a better seal at the tip, and the frontal area of the central wing has been reduced by 15 percent to improve aerodynamics as well. Additionally, rubber over-molding on the reed tip surface improves reed petal durability.
The V4R26 model reed valve is compatible for the KTM, Husky and GasGas 125, 150, 250 and 300 two-stroke lineup, and we tested it on our 2021 Husky TC250 two-stroke and KTM 150SX. On the track, we noticed an improvement in the bottom and midrange of the power. The VForce 4 helped the initial throttle feel crisper, but the biggest difference it made was in the midrange. When compared to stock, the extra air flow of the VForce 4R reed valve gave us more power in the middle of the straights. When we went back to stock, it felt “flat” in the middle. We didn’t notice any differences in over-rev, but we did appreciate that it was cleaner and quicker at the bottom and middle of the power curve.
WHAT’S THE SQUAWK? If we had to complain, we’d say that we expected there to be a bigger improvement from OEM, but that is unrealistic on a KTM or Husky because their stock reed valve system is a Moto Tassinari copy; however, for $168.00, we like it a lot. One warning; If you hold your VForce 4R reed valve up and can see light squeaking through, don’t fret. Moto Tassinari explained that’s normal for the VForce 4R, and they designed it that way. If a piece of paper can fit through, that’s okay. If it’s big enough for a credit card, then you have issues.
MXA RATING: The VForce 4R improves the bottom and midrange. If you want a cleaner throttle response and a stronger midrange, the VForce 4R is for you. More so for Yamaha YZ125 and YZ250 owners than Austrian bike owners.
• MXA VIDEO: 2022 KTM 250SXF VIDEO TEST
• THE LAST OF THE ITALIAN HUSKYS: MXA’S FINAL 2013 HUSQVARNA TEST
Where does Husqvarna stand now that BMW sold the brand to KTM? We wish we knew. BMW bought Husky right before the recession hit, and then tried to recover some of their investment by turning the iconic offroad brand into a gimmicky street bike brand. KTM’s known plans for the Swedish brand are to bring Husky to Austria and used KTM parts instead of Italian ones.
Q: WHERE DOES THIS LEAVE HUSABERG?
A: How did Husaberg get into this conversation? When Husqvarna was sold to the Castiglioni brothers of Cagiva fame, the ex-Husqvarna engineers in Sweden decided to pool their resources and build their own Swedish-built brand. That brand, Husaberg, forged its own path for many years, but was eventually bought by KTM. Sadly, over time, the Swedish-ness of Husaberg was lost as more and more of the production was moved to KTM’s Austrian factory. Today, Husaberg’s doors will be closed after the 2013 model year and merged into the new Husqvarna enterprise. The question is whether Husqvarna will suffer the same fate as Husaberg — which was to remain autonomous for a few years before just becoming a KTM in different colored plastic. We won’t really know until 2014 (more accurately until October of 2013).
Q: WILL THERE BE A 2014 HUSQVARNA CR125 NEXT YEAR?
A: Yes, but since there is little that Husqvarna does with its two-strokes that KTM doesn’t already do better, we doubt that the Austrians want the Italian engine. Plus, BMW insinuated that anything they developed will go back to Germany with them. This isn’t a great loss, because it probably only applies to the ill-fated, Taiwanese-built, TC449 engine and the 650cc Terra and Strada street bike engines. All that leaves Husqvarna with is the promising 2013 TC250 four-stroke Red Head engine, which has already undergone R&D upgrades for 2014, and the aging fleet of old-school 125cc, 250cc and 300cc two-stroke engines.
Q: WHAT IS THE TRICKEST THING ABOUT THE 2013 ITALIAN-MADE HUSKY CR125?
A: The smartest thing Husqvarna did was to include a 144cc top-end kit with each CR125 sold. When you buy the bike, your friendly local Husky dealer hands you a box with a big-bore cylinder, head, piston, rings, power valves, jets and gaskets. Ten years ago, turning your bike into a 144 would have been considered cheating, but in today’s four-stroke era, a 144 is often the best option for a racer.
Q: HOW WOULD MXA DESCRIBE THE HUSQVARNA CR125 POWERBAND?
A: The 2013 CR125 has a small window of peak power — and staying in that window is the secret to going fast. We give the CR125 engine credit for trying to run across a broad range of power, but it falls way short. The only person who would love this powerband is a hard-core, highly skilled, sugar freak who could keep the throttle pegged and his left foot twitching. Ridden flat out, it is a fun bike. Ridden half-heartedly, it is frustrating. Every MXA test riderer was tempted to shift early, but learned it was best to wait a split second longer than his first best guess. The sweet spot is way up there. If you are looking for a broader powerband? Open up the box that came with your CR125 and install the 144cc kit. Problem solved.
Q: HOW WELL DOES THE 2013 CR125/144 HANDLE?
A: The Husky CR125 is a neutral-handling chassis. It turns decently, tracks straight and doesn’t exhibit any oversteer or understeer. It isn’t the kind of bike you rave about, but you won’t whine about it either. There is no doubt that suppler forks, a lower seat height and a broader powerband would help, but “as is,” the MXA test crew liked it.
Q: HOW GOOD IS THE HUSQVARNA CR125/144 SUSPENSION?
A: A question would be, How odd is the Husqvarana CR125 suspension?n odd Kayaba/Sachs combo. The front forks are Kayaba forks from a Yamaha of undetermined vintage (we’d guess 2007), but they aren’t up to Yamaha performance standards. The overall fork settings are on the firm side, with a considerable amount of spike about two-thirds of the way into the stroke. Lightweight test riders lowered the oil height by 10cc to move the spike further into the stroke. If you are under 150 pounds, you should consider the next lightest spring rate, which would be a 0.41 kg/mm. It should be said that having the forks revalved to Yamaha SSS specs would be a good idea.
As for the shock, the German-made Sachs shock is a mystery to most American hop-up shops, but internally it is not that different from Showa or KYB. Sachs has come a long way in a short time. Although the number of suspension shops in the U.S. with any Sachs experience is limited. Aided by the CR125’s light 206-pound weight, the Sachs shock performed well.
Q: WHAT WAS THE WORST THINGS ABOUT THE 2013 HUSQVARNA CR125?
A: The plastic is so brittle that during our test we broke the front fender, front number plate, both fork guards and the lower radiator winglets. It should be noted that we didn’t break the plastic in a crash; it either broke of its own accord or was cracked by roost. We’ve never seen this on any other bike (although Kawasaki fork guards come to mind), but it has happened with every Husqvarna we’ve tested. We put older model KTM fork guards on the forks—they fit perfectly. As for the front fender and front number plate, we replaced them when they broke.
With a Pro-level test rider wringing out the bike, the CR125 pinged. We considered going one richer on the main, but found it easier to just keep Pros off the bike—because it didn’t ping in the hands of Vet, Novice and Intermediate riders. If you are going to push this bike to its limits, consider a 50/50 mix of pump gas and race fuel or a bigger main. We know of CR125’s that seized on their first day, but those owners just bolted on the 144 kit and kept riding.
Q: WHAT DID WE REALLY THINK OF THE 2013 HUSQVARNA CR125?
A: We think that this is the end of the line for the era of Italian Husqvarnas, just as when Cagiva bought Husky that was the end of the line for Swedish-built Husqvarnas. However, for motocross to grow, the sport needs more 125cc two-strokes. They are great entry-level machines, both from a riding and a maintenance standpoint—thus we are glad that KTM bought Husqvarna because BMW most likely would have killed it off or sold it to and under-budget Italian hopeful. The 2013 Husqvarna CR125 is not the best 125 you can buy, but its worth considering for non-racers on a budget.
• MXA VIDEO: WE TEST THE 2022 YAMAHA YZ450F
• MXA PRODUCT SPOTLIGHT: PRO CIRCUIT CHECKERED FLAG HAT
This sleek combo of a black and white patch logo with black mesh is sure to be a favorite at the track for both the young and seasoned rider. The retail pricr is$ 32.95 at www.procircuit.com.
• MXA VIDEO: WE TEST THE 2022 KTM 250SX TWO-STROKE
• MXA AD OF THE WEEK: WHEN CZ RULED THE MOTOCROSS WORLD
• WHICH IS BETTER? 2021 CRF250 OR 2022 CRF250
• MXA PRODUCT SPOTLIGHT: KTM POWERPARTS ACCESSORIES
FACTORY TRIPLE CLAMPS
This orange anodized triple clamp includes the steering stem with the bottom bearing already pressed on. It features adjustable offset (20mm or 22mm) and a special split clamp design to optimize perfect grip on the fork tubes. Identical to the 2020-1/2 KTM FC450 Factory Edition triple clamps. Retail price—$623.99.
KTM 60-PIECE 3/8″ TOOL BOX KIT
The most commonly used Torx, Allen, socket, screwdriver blades, adaptors, ratchet, extensions and breaker bar in a form-fitting case. It is design to make working on almost every KTM nut or bolt from 50cc to 505cc. Retail price—$145.99.
KTM 300CC FACTORY ENGINE KIT
All the parts needed to turn your 250SX into a 300SX (including cylinder, gaskets, piston, rings, cylinder head, black box, wrist pin, circlips and power valve). It is a bolt-on engine kit that boosts power by 4.25 horsepower more than the stock 250SX engine. Retail price—$956.99.
The orange anodized CNC-machined hubs are laced to D.I.D DirtStars rims with orange anodized aluminum spoke nipples with 36 black anodized spokes. The rear wheel comes in either 18-inch or 19-inch diameters on 2.15-inch DID DirtStar rims. Retail price—$424.99 (front), $499.99 (Rear). KTM Power Powerparts are available at your friendly local KTM dealer — to find a KTM dealer near you Click Here.
• 2022 SUPERCROSS SCHEDULE: YOU KNOW IT’S REAL BECAUSE THERE ARE 3 ANAHEIMS
• FIRE & POLICE MOTOCROSS AT LAKE ELSINORE ON OCT. 11-12
For more info go to www.firepolicemx.com
• OLD SCHOOL SCRAMBLES OKTOBERFAST GP AT GLEN HELEN ON OCT. 30-31
• 21ST ANNUAL REM OCTOBERCROSS WORLD VET WARM-UP RACE ON SATURDAY, OCT. 30
• 2021 DUBYA WORLD VET MOTOCROSS CHAMPIONSHIP ON NOV. 5-7
• INSIDE THE PRO’S BIKES | MAX ANSTIE’S TWISTED TEA/HEP SUZUKI RM-Z450
• MXA VIDEO: WE TEST THE 2022 HONDA CRF450
• MXA TEAM TESTED: MOTOOL SLACKER V4 BLUETOOTH SAG SCALE
The Motool Slacker digital sag scale was created as an innovative replacement for the old-school, ruler-type sag sticks. All you had to do was turn the power on, hook the 32-inch cable to your fender, zero out the scale and have your buddy read your race sag off the screen (the original Slacker also came with a digital remote that was plugged into the Slacker unit so that you could read your own sag while sitting on your bike).
Previously, checking your sag required you to sit on the bike and have another person measure the amount of sag at the rear fender. To utilize the Bluetooth capabilities and check your sag by yourself, we recommend balancing on your bike by holding onto the top frame of an E-Z UP or by resting your arm on a truck. For accurate readings, make sure that your bike is on flat ground and your arm is only being used for balance and not to hold any of your weight.
The Motool Service Assistant app is available to download for free on Apple and Android devices. It turns your smartphone into a virtual remote display, giving you real-time readings on your sag measurements. Simply connect via Bluetooth from your smartphone to the app like you would when connecting your phone to the stereo in your vehicle. Additionally, the app provides a space for you to record measurements and keep notes on multiple bikes and their suspension settings.
If you don’t want to bother with a smartphone, Motool has answered MXA’s wishes and updated its remote LCD display with new wireless capabilities. Using the remote is the simplest way to measure sag by yourself in the garage late at night.
They include a C-clamp to connect the cable to the bike. MXA doesn’t use the C-clamp. Instead, we drill a small hole in the rear fender and put the hook into it to get an accurate reading. The new V4 Slacker comes with a 30-day money-back guarantee. If your bike doesn’t handle better after adjusting your sag with the Slacker V4 digital suspension tuner, you can return it, no questions asked. Plus, it comes with a two-year warranty if you have any structural issues with the Slacker.
DIGITS: $159.99 (main unit only), $189.99 (Slacker V4 + wireless remote display)—www.motool.com or (800) 741-7702.
MXA RATING: The Motool Slacker V4 digital suspension tuner will be your new best friend. It was created by racers for racers. Riders should check their sag at regular intervals to compensate for slop on the shock’s spring and internal valving. Being able to do it yourself means that you can do it whenever you like.
• MXA VIDEO: WE TEST THE 2022 KAWASAKI KX450
• HAVE YOU SEEN THE NOVEMBER 2021 ISSUE OF MXA? IT IS THE BEST DEAL IN THE SPORT!
If you don’t subscribe to MXA, you are missing a whole different world of motocross news, facts, test and photographs. For example, the just released November 2021 issue includes a complete and thorough test of the 2022 KTM 450SXF —it is jam-packed full of things you need to know, didn’t know and probably will wish you knew. We also test the 2022 KTM 150SX two-stroke. If could only own one bike, the KTM 150SX should be at the top of your list. Not to mention the full race test of the one of the best modded 1991 Kawasaki KX500s we’ve ever tested. When your done reading the bike tests, you might want learn a little bit about 1982 250 World Champion Danny LaPorte or get a quick education in what the big fuss is about aftermarket motor mounts and head stays or maybe sit back and let Jamie Ellis give you the rundown on building the perfect engine for you. And that’s not all, we go to the Washougal National to see how beautiful an AMA National track can be and swing by ODI’s factory in Riverside, California, to find out what ODI stands for—other than really cool lock-on grips. As an added bonus, we give you a ton of tech info to make your life easier.
HOW TO SUBSCRIBE TO MXA SO THAT YOU NEVER MISS ANOTHER ISSUE, PLUS GET A $25 ROCKY MOUNTAIN GIFT CREDIT TO COVER YOUR COSTS
If you subscribe to MXA you can get the mag on your iPhone, iPad, Kindle or Android by going to the Apple Store, Amazon or Google Play or in a digital version. Even better you can subscribe to Motocross Action and get the awesome print edition delivered to your house by a uniformed employee of the U.S. Government. Did we mention the $25 gift card for any part you want from Rocky Mountain ATV/MX? You can call (800) 767-0345 or Click Here (or on the box at the bottom of this page) to subscribe.
• MXA VIDEO: WE TEST THE 2022 KTM 150SX TWO-STROKE
• MXA PRODUCT SPOTLIGHT: WORKS CONNECTION ELITE THROTTLE TUBE
• MXA TEST RIDER PHOTO OF THE WEEK: NEVER LET GO!
• MXA VIDEO: WE TEST THE 2022 HUSQVARNA TC125
• KEEPING TRACK OF THE 2021 RACE SCHEDULES
2021 AMA NATIONAL MOTOCROSS CHAMPIONSHIP (REVISED)
May 29…Pala, CA
Jun 5…Thunder Valley, CO
June 19…Mt. Morris, PA
July 3…Red Bud, MI
July 10…Southwick, MA
July 17….Millville, MN
July 24….Washougal, WA
Aug. 14…Unadilla, NY
Aug. 21…Budds Creek, MD
Aug. 28…Crawfordsville, IN
Sept. 4…Pala, CA
2021 FIM GRAND PRIX CHAMPIONSHIP (REVISED)
Jun. 13…Orlyonok, Russia
Jun. 27…Matterley Basin, England
Jul. 4…Maggiora, Italy
Jul. 18…Oss, Holland
Jul. 25…Loket, Czech Republic
Aug. 1…Lommel, Belgium
Aug. 8…Kegums, Latvia
Aug 15…Uddevall, Sweden (Canceled)
Aug. 22…KymiRing, Finland (Canceled)
Sep. 5…Afyonkarahisar, Turkey
Sep. 8…Afyonkarahisar, Turkey (Wednesday)
Sep. 19…Rio Sardo, Sardinia
Oct. 3…Teutschenthal, Germany
Oct. 10…Lacapelle, France
Oct. 17…Intu Xanadu, Spain
Oct. 24…Agueda, Portugal (Canceled)
Oct. 24…Trentino, Italy
Oct. 27…Trentino, Italy (Wednesday)
Oct. 31…Trentino, Italy
Nov. 7…Mantova, Italy
Nov. 10 …Mantova, Italy (Wednesday
Nov. 14…TBA, Argentina (Canceled)
Nov. 28…Borobudur, Indonesia (Canceled)
Dec. 5… Bali, Indonesia (Canceled)
2021 WORLD SIDECAR MOTOCROSS CHAMPIONSHIP (REVISED)
Aug. 1…Strassbessenbach, Ger (Canceled)
Aug. 15…Lange, Est (Canceled)
Aug. 22…Jinin, Czh
Aug. 29…Roggenburg, Swi (Canceled)
Sep. 19…Oss, Hol (Postponed to 10-17-21)
Sept. 26…Lange, Est
Oct. 10…Kramolin, CZR
2021 REM RACE REMAINING SCHEDULE
Oct. 30…Glen Helen (Octobercross)
Nov. 20…Glen Helen, CA
Dec. 4…Glen Helen, CA
Dec. 18…Glen Helen, CA
2021 SCOTTISH NATIONAL CHAMPIONSHIP (REVISED)
Sept. 4/5…Desertmartin, No. Ireland (Canceled)
2021 AUSTRALIAN NATIONAL CHAMPIONSHIP (REVISED)
Apr. 11…Wonthaggi, VIC
May 2 …Canberra, ACT
Jun. 27…Maitland, NSW
Jul. 25…Wodonga, VIC (Postponed
Aug. 8…Coulson, QLD (Postponed)
Aug. 14….Coolum, QLD (Postponed)
Aug. 15….Coolum, QLD (Postponed)
Sept. 5…Gillman, SA (Postponed)
2021 ADAC GERMAN NATIONAL CHAMPIONSHIP (REVISED)
Sep. 5…Furstilich Drehna
2021 MOTOCROSS DES NATIONS
Sep. 26…Mantova, Italy
2021 REM OCTOBERCROSS
Oct. 30…Glen Helen
2021 DUBYA WORLD VET CHAMPIONSHIP
Nov. 5-7…Glen Helen
2021 PARIS SUPERCROSS
Nov. 6-7…Paris, France
2021 NITRO RALLYCROSS
Nov. 20-21…Glen Helen, CA
• MXA VIDEO: WE TEST THE 2022 HONDA CRF250
• TENTATIVE 2022 RACE SCHEDULES
Jan. 8…Anaheim, CA
Jan. 15…Oakland, CA
Jan. 22…San Diego, CA
Jan. 29…Anaheim, CA
Feb. 5…Glendale, AZ
Feb. 12…Anaheim, CA
Feb. 19… Minneapolis, MN
Feb. 26… Arlington, TX
Mar. 5…Daytona Beach, FL
Mar. 12…Detroit, MI
Mar. 19…Indianapolis, IN
Mar. 26…Seattle, WA
Apr. 9…St. Louis, MO
Apr. 16…Atlanta, GA
Apr. 23…Foxborough, MA
Apr. 30…Denver, CO
May 7…Salt Lake City, UT
2022 KICKER ARENACROSS SERIES
Jan. 7-8…Loveland, CO
Jan. 14-15…Amarillo, TX
Jan. 21-22…Oklahoma City, OK
Jan. 28-29…Greensboro, NC
Feb. 4-5…Reno, NV
Feb. 11-12…Denver, CO
2022 WORCS OFF-ROAD SCHEDULE
Jan. 21-23…Primm, NV
Feb. 18-20…Glen Helen, CA
Mar. 11-13…Lake Havasu City, AZ
Apr. 8-10…Taft, CA
Apr. 29-May 1…Las Vegas, NV
May 27-29…Cedar City, UT
Sept. 16-18…Preston, ID
Oct. 14-16…Mesquite, NV
Nov 4-6…Primm, NV
• MXA VIDEO: WE TEST THE 2022 KTM 450SXF
• JOIN MXA’S FLIPBOARD PAGE
• GLEN HELEN NITRO RALLYCROSS TICKETS ON SALE NOW FOR NOV. 20-21 EVENT
Travis Pastrana’s Nitro RallyCross (NRC) is set to expand in a big way, announcing a full championship series comprising five races in 2021. In 2022, NRX will go even bigger with a 10-stop global championship with races in North America, Europe and the Middle East. The new championship will also feature a revolutionary electric vehicle supercar class, which will be introduced in 2022. Travis Pastrana said, “Since day one, I have truly believed that Nitro RallyCross has the potential to be the most exciting motorsports series on the planet. When we built the first NRX course in Utah we knew we had something special — from the drivers’ genuine smiles to the astonished fans as cars flew side-by-side over 100-foot jumps.” Nitro RallyCross comes to Glen Helen Raceway on Nov. 20-21. You can purchase tickets now by Clicking Here.
• MXA VIDEO: WE TEST THE 2022 YAMAHA YZ250F
• WANNA RACE IN SOCAL? WORLD VET IS COMING UP! NEED TO RENT A BIKE? FIND A PLACE TO STAY? JUST CALL STAPO WHEN YOU CAN TRAVEL AGAIN
In his spare time, when he’s not testing with MXA, racing in a foreign country, going to Japan or helping many of his motocross buddies, MXA test rider Dennis Stapleton opens up his house, garage, bikes and mechanics to help riders who would like to come to SoCal on a motocross vacation—and when all the the countries open back up, foreign riders will be able to come to America to race, train and sight see again. You should plan ahead and make your reservations now for the upcoming World Vet Motocross Championship in November.
Dennis offers full service to all of the Southern California tracks for racers or play riders. Whether you want to rent a bike, move in for a week, race at Glen Helen or take motocross lessons—this is one-stop shopping. Just send them an email (Stapoknobbyshop@gmail.com). If you’d like to live the SoCal lifestyle for a day, a weekend, a week, a month or three months, visit Dennis Stapleton’s’ website at www.knobbyshopsouth.org for more details!
• MXA YOUTUBE CHANNEL | HIT THAT SUBSCRIBE BUTTON
• MXA PRODUCT SPOTLIGHT: MOTOCROSS ACTION CASUAL WEAR
To see more MXA T-shirts and all the available colors Click Here