MXA’S WEEKEND NEWS ROUND-UP: FOUR DAYS BEFORE THE FIREWORKS BEGIN

MXA PRODUCT SPOTLIGHT: FACTORY RIDE PREDATOR GOGGLES

As the sport of motocross continues to grow so does the need for high-definition optics in one of the most demanding disciplines of motorsports. The new Factory Ride “Predator” goggle is the result of a collaboration between the FXR Moto Division and Rich Taylor from EKS Brand goggles. EKS Brand brings it’s expertise, built on 55+ years of combined goggle R&D knowledge, to FXR to provide premium eye protection and clear vision performance in all types of motocross, Supercross and off-road racing conditions.

The new Factory Ride goggle will advance vision and function to the maximum with its incredible XDO, (Xtreme Definition Optics) lens technology. The XDO lens is injection molded from the highest quality impact resistant polycarbonate material for zero visual distortion. Be ready to battle with clear vision on the track or trail no matter how extreme the conditions are.

FACTORY RIDE FRAME TECHNOLOGIES
• Waverlatch Quick-change lens locking system.
• Rugged DYAD frame, double injected to our race proven Polyflex face-forming inner frame.
• Floair ventilation system with moisture channel.
• Rigid outrigger system.
• 20mm multi-layer contoured face foam.
• 45mm ultra-wide woven strap with silicone traction control.

FACTORY RIDE LENS TECHNOLOGIES
• XDO (Xtreme Definition Optic) lens technology features a hard coat and anti-fog treatment.
• Low-rise impact-resistant pre-curved polycarbonate lens.
• Ultra-wide field of view accepts 50mm roll-off film system.
• Detachable vented nose shield.
• Quick-change roll-off system compatible.
• Soft storage/cleaning bag included.

• MXA FIRST RIDE: 2023 KTM 300SX—ALL-NEW, ELECTRIC START, FUEL-INJECTED TWO-STROKE

• 2022 FACTORY EDITION, ROCKSTAR EDITION, HONDA, KAWASAKI & YAMAHA “FIRST RIDE” VIDEO VIEWERS BY MEDIA
2022 Honda CRF450-15_e

2022 KAWASAKI KX450 MXA TEST





These are YouTube’s official number of viewers for MXA, Dirt Bike, SwapMoto, Vital and RacerX videos.

THE WILD & CRAZY WORLD OF NO-FLAT INVENTIONS

Flat tires are a bummer, not just for your day of riding, but for your wallet and knuckles.

There is nothing worse than a flat tire at a race. Most riders don’t know how to change a tire, so a flat often means the end of their day at the races or paying someone to fix it for you (if you have the correct tube with you). Thankfully, there is no shortage of no-flat concepts on the market to make flat tires an unlikely happenstance. Here are six ways to end flat-tire phobia.

The Hi-Point integrated tubeless tire uses a ply of the tire’s carcass as the tube.

HI-POINT INTEGRATED TUBELESS TECHNOLOGY (ITT)

Most creative: Integrated Tubeless Technology (ITT) uses a vulcanized layer of nylon fabric to form a tubular air chamber inside the tire. In layman’s terms, Hi-Point takes 1 ply of the tire’s carcass and lets it hang down from the inside of the tire. It is vulcanized, essentially rubberized, so that this single ply can hold air. The single vulcanized ply completes the circle of the tire’s carcass so that the tire itself is the tube. The Hi-Point motocross tire is no longer available, but there is an Innova ITT mountain bike tire.

Nitromouse tubes comes in two different densities—12 psi and 8 psi.

You can’t lose air from a Nitromousee because it is encapsulated in tiny bubbles in the foam mixture.

NITROMOUSSE ELASTOMER FOAM TUBES

Most used: Nitromousse gets its name because its foam mixture contains a high concentration of nitrogen in the micro-bubble matrix of the elastomer foam. This lessens the dead feel of a normal mousse. Nitromousse makes two different models. The standard Nitromousse mimics the 12 psi of the typical motocross setup. The Nitromoussee Soft version mimics 8 psi. The Soft version is designed for EnduroCross, rock-garden rides and muddy woods. No matter which Nitromousse model you choose, the best thing about a Nitromousse is that it can never go flat. www.nitromousse.com

The Tech 2 heavy-duty tubes offer three different options on tube thickness.The 2mm thick versus is best for motocross.

STI TECH 2 HEAVY DUTY TUBES

Cheapest: Heavy-duty tubes are cheap protection, and STI makes three models. They make a 2mm-thick Heavy Duty tube, (which is what the MXA wrecking crew uses in our test bikes when we are nervous), a 3mm-thick Extreme Duty tube that is best suited to off-road bikes and adventure bikes, and finally they make a 4mm-thick Ultra-Heavy Duty tube for rally bikes and big four-stroke adventure bikes. Best of all, the STI Heavy Duty tube is cheaper than most regular tubes. www.stipowersports.com

The Tube Saddle’s foam liner cushions the tube against the rim to stop pinch flats.

TUBE SADDLE NO-PINCH TIRE LINER

Anti-pinch: The Tube Saddle is a lightweight foam insert designed to prevent pinch flats. It requires no modification to the rim and installs essentially the same as an inner tube (although in addition to an inner tube). Think of a Tube Saddle as one-third of a mousse. It fits against the rim and up the sides of the tube to act as a cushion against having the rim pinch the tube on hard landings. With the Tube Saddle, the MXA wrecking crew was able to run rear tire pressures as low as 8 psi for added traction with no ill effects or pinch flats. www.tubesaddle.com

The red rubber bladder seals the tire beads together to form a tubeless tire.

NUETECH DUAL-CHAMBER TUBLISS SYSTEM

Tubeless: There are no readily available tubeless motocross tires. Why not? They require special rims, rubber sealing bladders and messy sealants. Nuetech devised a way to turn a standard tire into a tubeless tire. Instead of trying to seal the rim to keep air in the tire, Nuetech seals the gap between the two tire beads with a special rubber inner liner, which is a fancy way of saying bicycle tire. By filling the gap between the tire’s beads with an inflatable rubber bladder, the tire becomes an airtight chamber. It isn’t exactly tubeless, though, as the rubber inner bladder holds 100 psi. www.tubliss.com

You can change the pressure in the TireBalls to fine-tune the feel.

TIREBALLS HIGH PERFORMANCE INFLATION SYSTEM

More is better. The TireBalls High Performance Inflation System consists of multiple individual inflation cells inside your tire that replace the traditional tube. The puncture of a TireBall cell does not result in a flat tire, because it is only one cell out of 30. The TireBall cells are 10 times more puncture-resistant than a conventional heavy-duty tube. Available in motocross and off-road versions, TireBalls can be inflated to whatever pressure you want. www.tireballs.com

• MXA FIRST RIDE: 2023 KTM 450SXF—SO NEW YOU MAY NEED TO READ THE MANUAL

WHO’S WHO IN THE MXGP ZOO? THE TOP TEN AFTER 8 OF 20 RACES

Calvin Vlaanderren (10) was the surprise 450 Grand Prix winner in Sardinia. It moved him into the top ten in points.

2022 450 WORLD CHAMPIONSHIP POINTS STANDINGS
(After 8 of 20 rounds)
1. Tim Gajser (Hon)…367
2. Maxime Renaux (Yam)…288
3. Jeremy Seewer (Yam)…264
4. Jorge Prado (Gas)…260
5. Glenn Coldenhoff (Yam)…234
6. Ruben Fernandez (Hon)…213
7. Brian Bogers (Hus)…205
8. Jeremy Van Horebeeck (Bet)…189
9. Calvin Vlaanderren (Yam)…178
10. Pauls Jonass Hus)…172

Jago Geerts lead was cut to 6 points in Sardinia by Tom Vialle. The Grand Prix riders get a week off before the Spanish Grand Prix.

2022 250 WORLD CHAMPIONSHIP POINTS STANDINGS
(After 8 of 20 rounds)
1. Jago Geerts (Yam)…338
2. Tom Vialle (KTM)…332
3. Simon Laengenfelder (Gas)…245
4. Mikkel Haarup (Kaw)…239
5. Kevin Horgmo (Kaw)..233
6. Kay de Wolf (Hus…211
7. Andrea Adamo (Gas)…198
8. Isak Gifting (Gas)…193
9. Stephen Rubini (Hon)…175
10. Mattia Guadagnini (Gas)…172

• 8TH ANNUAL KURT CASELLI FOUNDATION AT THE DOFFO WINERY ON JUNE 11


For more info go to www.kurtcaselli.com

MALCOLM STEWART TO MISS HALF OF THE AMA 450 NATIONAL MOTOCROSS CHAMPIONSHIP

Malcolm Stewart gets to go fishing for at least the first half of the summer.

Previously a rumor, but now official: Rockstar Energy Husqvarna Factory Racing’s Malcolm Stewart is expected to miss the first half of the upcoming AMA Pro Motocross Championship as he continues to rehab an ongoing knee injury sustained during the Supercross season. The outdoor series begins on May 28 at Pala, where Shane McElrath is set to fill-in on the team in the 450 class (paradoxically for Dean Wilson and Malcolm Stewart at the same time). McElrath only had a four-race contract, when it was just Dean Wilson he was replacing, but now he will get at least two more Nationals. McElrath will be joined by teammates R.J. Hampshire, Stilez Robertson and Jalek Swoll.

Stewart delivered impressive Supercross results in his first season with the team. But, the Florida native sprained his knee during a crash at the St. Louis Supercross, but continued racing through the remainder of the season. He re-injured the same knee at the season finale in Salt Lake City and upon further evaluation, it was determined that he would need additional time for recovery. Stewart hopes to line up for the second half of racing this summer—perhaps at Millville on July 16.

Malcolm Stewart said, “I sprained my knee in an awkward crash at the St. Louis Supercross, but I managed to rehab it and ride through the pain well enough to make it through the remaining rounds feeling pretty good. I was really looking forward to returning to the MX Nationals this summer, but some things out of my control happened in the Salt Lake City Main Event and, in that crash, I further injured my knee. This has forced me to sit out at least the first half of the season. but I will continue to work hard at the Baker’s Factory in the meantime to make a full recovery, and I look forward to seeing all y’all fans this summer!”

Teammate Dean Wilson will also miss the first part of the season as he continues to recover from injuries sustained during his crash in St. Louis. In the meantime, Shane McElrath will fill-in for Wilson aboard the FC450 Rockstar Edition. Joining him in the 250MX lineup will be veteran team riders R.J. Hampshire, Stilez Robertson and Jalek Swoll who are all ready to contest the 2022 title this summer.

MXA VIDEO: 2022-1/2 KTM 450SXF FACTORY EDITION VIDEO TEST

• FIRST LOOK! 2023 HUSQVARNA TWO-STROKE MOTOCROSS MODELS

Continuing to deliver true motocross performance, the all-new 2023 Husqvarna Motorcycles TC and FC models further enhance the on-track riding experiences of all riders. Highly capable of competing at the top levels of racing as standard, technical advancements across the five-motorcycle-strong range include new engines, suspension, frames, swingarms, and bodywork. Each of the two-stroke and four-stroke machines receive tailored developments for maximum performance.

2023 HUSQVARNA TWO-STROKE MOTOCROSS MODELS

2023 Husqvarna TC125.

2023 Husqvarna TC250.

Strengthening their positions as the leader in two-strokes in the marketplace, the TC125 and TC250 are now equipped with Electronic Fuel Injection (EFI) and E-Start as standard. The throttle body fuel-injection system ensures class-leading power and rideability, as well as enhanced reliability and lower overall running costs. Both machines are now easily started with the simple press of a button. These significant enhancements underline the continued evolution of these popular models, which set the benchmark for premium motocross machinery in the highly competitive two-stroke segment.

2023 HUSQVARNA FOUR-STROKE MOTOCROSS MODELS

2023 Husqvarna FC250.

2023 Husqvarna FC350.

2023 Husqvarna FC450.

The 2023 FC250 and FC350are powered by all-new our-stroke engines that are designed to be faster, lighter and play a vital role in enhancing overall handling. Utilizing the latest technology and electronic rider aids, these models remain at the forefront of motocross development alongside the FC450, which feature a revised and repositioned engine to improve mass centralization.

All machines in the motocross line-up are engineered to outperform the competition. Expertly assembled with high-quality components for enhanced performance, reliability, and customization, these models are equipped with WP suspension for unsurpassed comfort and straight-line stability. The new WP XACT 48mm front forks offer more progressive end-of-stroke damping thanks to an improved Hydrostop. In addition, the WP XACT rear shock is designed with a refined main piston for improved comfort and features tool-free adjusters for fast setting changes. Complete with ProTaper handlebars, Brembo clutch and Dunlop tires, each model is equipped with a map select switch for selectable engine maps and a personalized riding experience.

Continuing to deliver true motocross performance, the all-new 2023 Husqvarna Motorcycles TC and FC models further enhance the on-track riding experiences of all riders. Highly capable of competing at the top levels of racing the five-motorcycle-strong range include new engines, suspension, frames, swingarms and bodywork. Each of the two-stroke and four-stroke machines receive tailored developments for maximum performance.

WHAT IS NEW AT HUSKY FOR 2023:

1. New bodywork with specifically tailored ergonomics for easier movement on the motorcycle
2. New hydro-formed chromium-molybdenum frames significantly improve anti-squat behavior


3. New topology-optimized die-cast aluminum swingarm provides optimal rigidity and low weight
4. New throttle body fuel injection (TBI) on two-stroke engines ensures class-leading power and rideability

5. New FC250 (shown above) and FC350 DOHC engines deliver class-leading torque and peak power
6. New Quickshift sensor ensures seamless upshifting on all FC 4-stroke models and the cross-country FX 450

7. New electric start on all two-stroke models
8. New aluminum-polyamide hybrid subframe construction provides specifically calculated rigidity and advanced durability.

9. New WP XACT 48mm front forks with AER technology offer more progressive end-of-stroke damping.


10. New WP XACT rear shock design with CFD-optimized main piston and tool-free adjusters.

11. New multifunctional Map Select Switch also activates the Quickshifter, Traction, and Launch Control on FC models.
12. High-performance Brembo hydraulic clutch system
13. Premium-quality ProTaper handlebars
14. Electric start powered by a lightweight Li-Ion 2.0 Ah battery

THIS WEEK IN MXA WITH JOSH MOSIMAN: MCELRATH’S CONTRACT, PLESSINGER’S FREQUENT FLIER MILES & “MY LITTLE BROTHER”

• THE LONG AWAITED 2023 KTM 300SX MOTOCROSS BIKE, BUT YOU WILL HAVE TO WAIT A LITTLE LONGER

MXA flew to Michigan to ride the ll-new 2023 KTM 125SX, 250SX, 300 SX and all three four-stroke models. Given the time constraints of only having one-day to ride, especially since we had to head to Barcelona, Spain, the next morning to test ride the Stark Varg at the Golf MX track (which got canceled and rescheduled) while we were at the Chicago sirport). With the time constraints of doing six bikes in one day, we elected to focus our video efforts on the 2023 KTM 300SX.

The biggest news,that is not related to KTM’s technology, is that the 2023 KTM two-strokes probably won’t be in the showrooms until September, but based on the interest in the 300SX, you might want to get your name on your local dealers list today.

THE JUNE 2022 ISSUE OF MXA IS OUT! 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, tests and photos. We cover the full spectrum of the sport—from four-stroke tests, two-stroke tests, retro tests, race coverage, technology and product tests.

The June 2022 issues has full tests on the 2022-1/2 KTM 450SXF Factory Edition, 2022 Kawasaki KX450 SR Special Racer, 2022 Honda CRF450WE Works Edition, 2022 GasGas MC 250 two-stroke, Pasha’s KTM 270 Big-bore, the first look at the the 2023 GasGas motocross models and what it’s like to race a Johnny Campell Racing (JCR) Honda CRF450RX off-road bike.

If that’s not enough, go with us to Italy where we tested Stefan Everts’ works 2003 YZ450FM and YZ250FM. And, if all that doesn’t entice you to subscribe to Motocross Action, we will also give you a $25 credit from Rocky MountainATV/MC  that will more than cover the cost of your subscription. To subscribe call (800) 767-0345 or Click Here

• FIRST LOOK! KTM INTRODUCES 18-INCH AND 20-INCH ELECTRIC BALANCE BIKES FOR 8-TO-10 & 10-TO-12 YEAR OLDS

KTM has increased its electrified balance bike line-up with two new larger models. The new KTM 18e Drive 20e Drive machines are built in collaboration with Stacyc to join the 12e Drive and 16e Drive models.

THE 18E DRIVE FACTORY EDITION ELECTRIC BALANCE BIKE

The 2023 KTM 18e Drive Factory Edition.

The all-new KTM 18e Drive model features a new 36 Volt motor with enough power and range to tackle aggressive riding terrain or longer trips. The brushless electric motor platform also has a quick-change battery system. With three power modes and a top speed of 18 mph, 18e Drive comes with Hayes hydraulic disc brakes, nylon wheels with 18 x 2.4 Vee pneumatic tires and a weight of 31 pounds.

The 18e Drive has a top speed of 18 mph and a weight limit of 115 pounds.

The 18e Drive is designed for kids from 8 to 10 years of age, and up to 115 pounds. Run time is 30 to 45 minutes. The KTM 18e Drive retails for $2750.

THE 20E DRIVE FACTORY EDITION ELECTRIC BALANCE BIKE

The big difference between the 20e and 18e is that the 20e Drive comes with 20-inch wheels and a Manitou suspension fork.

The KTM 20e Drive also offers three power modes for 10 to 12 year olds, who weigh less than 115 pounds. It tops out an impressive 20 mph and comes equipped with Manitou J-Unit front forks with 80mm of suspension travel, Hayes hydraulic disc brakes, nylon wheels and 20 x 2.6 Vee pneumatic tires. It has an an adjustable 23-inch seat height and weighs 33 pounds. Run time is 30 to 60 minutes.The KTM 20e Drive retails for $3200.

The two limited-edition models will arrive at authorized KTM dealers in June 2022. For more info go to www.KTM.com.

• MXA VIDEO: WHEN THE PRO COME OUT TO PLAY! AMA NATIONAL PREP AT GLEN HELEN (WHERE ELSE?)

• MXA PRODUCT SPOTLIGHT: PRO CIRCUIT ENGINE KITS FOR THE 2022 HONDA CRF450 AND KAWASAKI KX250

Pro Circuit has released two all-new engine packages for the 2021/2022 Honda CRF450R/RX and Kawasaki 2021/2022 KX250 machines. Each of the package’s parts has been designed and tested to complement each other for significant engine performance gain at all RPM levels.

HONDA CRF450 ENGINE KIT


The CRF450R/RX package includes a High Compression Piston Kit, a Camshaft, and Valve Springs. The piston kit is manufactured by JE Pistons to Pro Circuit’s exact specifications to provide a significant boost in low-end torque and high RPM performance. The camshaft is newly designed and delivers a significant boost in low-end torque and high RPM performance, while the valve springs allow the engine to run at a higher RPM without loss of valve control. The retail price is $1300.

KAWASAKI KX250 ENGINE KIT


The Kawasaki KX250 kit comes with both the High Compression Piston Kit and the camshaft, but adds titanium exhaust and intake Valves along with a Valve Spring Kit. Both the Exhaust and Intake Valves are designed based on race technology and manufactured by Del West, a leader in F1 racing valve technology. Each valve is made of strong titanium and spread with a thermal-nitride coating to increase performance, durability and reduce normal wear. The retail price is $3375. For more info on either kit go to www.procircuit.com

FIRST LOOK! 2023 KTM 450SXF, 350SXF & 250SXF MODELS

2023 KTM 450SXFThe 2023 KTM models have arrived! MXA has been riding the 2022 KTM 250SXF and KTM 450SXF factory editions for a while now and we’ve seen them in Supercross racing with the Red Bull KTM Team. Now, the 2023 production models have arrived. See below for the 250SXF, 350SXF and 450SXF models and

2023 KTM 450SXF

2023 KTM 450SXF-2jpg
2023 KTM 450 SX-F HIGHLIGHTS

  • All-new generation model with new chassis and engine wrapped in new bodywork.
  • Redesigned engine is tilted 2° back to improve anti-squat and features better mass centralization and increased compression for better mid-range performance.
  • New frame design with forged shock mount and reworked rigidity to better manage rider comfort.
  • New topology optimized subframe with hybrid polyamide and aluminum construction for improved durability.   
  • New hollow, die-cast swingarm offers reduced unsprung weight and increased rigidity.
  • New Quick Shift function allows clutchless upshifts from 2nd to 5th gear.
  • Updated WP XACT fork with new settings and new hydrostop to improve bottoming resistance.
  • New, completely redesigned WP XACT rear shock has a lighter and shorter body and all new internals.
  • New optimized handlebar mounts increase grip surface for reduced bar twist.
  • New map select switch changes engine character depending on track conditions and rider preference.
  • Hydraulic Brembo clutch system offers highly controllable modulation and light operation.
  • High-tech Brembo brakes combined with lightweight wave discs offer incredible braking power and feel.
  • CNC machined hubs and high-end Excel rims combine unmatched performance and durability with massive weight savings.

2023 KTM 450SXF engine-1

450SXF SPECIFICATIONS
Engine Type: Single Cylinder, 4-Stroke
Displacement: 449.9cc
Bore / Stroke: 95mm x 63.4mm
Compression Ratio: 13.1:1
Transmission: 5 Gears
Fuel System: Keihin EFI, 44mm Throttle Body
Front Suspension: 48mm WP XACT USD Fork
Rear Suspension: WP XACT Monoshock with Linkage
Suspension Travel Front/Rear: 12.2 inches / 11.81 inches
Front/Rear Brakes: Disc Brake 260mm / 220mm
Front/Rear Tires: 80/100-21” / 120/80-19” Dunlop MX33
Steering Head Angle: 26.1º
Triple Clamp Offset: 22mm
Wheelbase: 58.7 inches
Ground Clearance: 13.5 inches
Seat Height: 37.7 inches
Tank Capacity 1.90 gallons
Weight (without fuel) 226.1 pounds

2023 KTM 350SXF 

2023 KTM 350SXF

2023 KTM 350SXF HIGHLIGHTS

  • All-new generation model with new chassis and engine wrapped in new bodywork.
  • Redesigned engine is tilted 2° back to improve anti-squat and features increased compression for better mid-range performance.   
  • New frame design with forged shock mount and reworked rigidity to better manage rider comfort.
  • New topology optimized subframe with hybrid polyamide and aluminum construction for improved durability.   
  • New hollow, die-cast swingarm offers reduced unsprung weight and increased rigidity.
  • New Quick Shift function allows clutchless upshifts from 2nd to 5th gear.
  • Updated WP XACT fork with new settings and new hydrostop to improve bottoming resistance.
  • New, completely redesigned WP XACT rear shock has a lighter and shorter body and all new internals.
  • New optimized handlebar mounts increase grip surface for reduced bar twist.
  • New map select switch changes engine character depending on track conditions and rider preference.
  • Hydraulic Brembo clutch system offers highly controllable modulation and light operation.
  • High-tech Brembo brakes combined with lightweight wave discs offer incredible braking power and feel.
  • CNC machined hubs and high-end Excel rims combine unmatched performance and durability with massive weight savings.

2023 KTM 350SXF engine

350SXF SPECIFICATIONS
Engine Type: Single Cylinder, 4-Stroke
Displacement: 349.7 cc
Bore / Stroke: 88 x 57.5 mm
Compression Ratio: 14.6:1
Transmission: 5 Gears
Fuel System: Keihin EFI, 44mm Throttle Body
Front Suspension: 48mm WP XACT USD Fork
Rear Suspension: WP XACT Monoshock with Linkage
Suspension Travel Front/Rear: 12.2 inches / 11.81 inches
Front/Rear Brakes: Disc Brake 260 mm / 220 mm
Front/Rear Rims: 1.60x 21” / 2.15 x 19” Excel
Front/Rear Tires: 80/100-21” / 110/90-19” Dunlop MX33
Silencer: Aluminum
Steering Head Angle: 26.1º
Triple Clamp Offset: 22mm
Wheelbase: 58.7 inches
Ground Clearance: 13.5 inches
Seat Height: 37.7 inches
Tank Capacity: 1.90 gallons
Weight (without fuel):224.6 pounds

2023 KTM 250SXF

2023 KTM 250SXF
2023 KTM 250 SX-F HIGHLIGHTS

  • All-new generation model with new chassis and engine wrapped in new bodywork.
  • Redesigned engine is tilted 2° back, 8 mm shorter and features increased bore and compression for better mid-range performance.   
  • New frame design with forged shock mount and reworked rigidity to better manage rider comfort.
  • New topology optimized subframe with hybrid polyamide and aluminum construction for improved durability.   
  • New hollow, die-cast swingarm offers reduced unsprung weight and increased rigidity.
  • New Quick Shift function allows clutchless upshifts from 2nd to 5th gear.
  • Updated WP XACT fork with new settings and new hydrostop to improve bottoming resistance.
  • New, completely redesigned WP XACT rear shock has a lighter and shorter body and all new internals.
  • New optimized handlebar mounts increase grip surface for reduced bar twist.
  • New map select switch changes engine character depending on track conditions and rider preference.
  • Hydraulic Brembo clutch system offers highly controllable modulation and light operation.
  • High-tech Brembo brakes combined with lightweight wave discs offer incredible braking power and feel.
  • CNC machined hubs and high-end Excel rims combine unmatched performance and durability with massive weight savings.

250SXF SPECIFICATIONS
Engine Type: Single Cylinder, 4-Stroke
Displacement: 249.9cc
Bore / Stroke: 81mmm x 48.5 mm
Compression Ratio: 14.5:1
Starter/Battery: Electric Starter / 12.8V, 2 Ah
Transmission: 5 Gears
Fuel System: Keihin EFI, 44mm Throttle Body
Suspension Travel Front/Rear: 12.2 inches / 11.81 inches
Front/Rear Brakes: Disc Brake 260 mm / 220 mm
Front/Rear Rims: 1.60x 21” / 2.15 x 19” Excel
Front/Rear Tires: 80/100-21” / 110/90-19” Dunlop MX33
Silencer: Aluminum
Steering Head Angle: 26.1º
Triple Clamp Offset: 22 mm
Wheelbase: 58.7 inches
Ground Clearance: 13.5 inches
Seat Height: 37.7 inches
Tank Capacity: 1.90 gallons
Weight (without fuel): 222.6 pounds

• MXA TEAM TESTED: BOLT MX KAWASAKI KX250/KX450 PERMA-NUTS

Bolt MX has come up with the solution to stop the rear fender and airbox cover T-plates from falling on the ground every time you work on your bike. At first glance, the side-mounted 2019–2022 Kawasaki KX airboxes and air filters look like a cool idea—until you start living with them. Problems? We have a few. First, it takes two different-size T-handles to get the Kawasaki airbox cover off. KTM, GasGas and Husqvarna have no bolts. Yamaha has a single Dzus fastener and Honda has one bolt. We aren’t complaining about having to loosen two bolts, but we are complaining about having to loosen two different-size bolts. It shows a lack of understanding about what buyers appreciate. Second, the lower airbox cover bolt is prone to stripping out the subframe threads, Third, Kawasaki’s filter-cage design is difficult to use, which is odd because Kawasaki redesigned it to make it easier to use. Fourth, the airbox is so small that there is no room to maneuver the cage, and you can’t see the hook and post when you are installing the filter. Finally, when you remove the top airbox cover bolt, which doubles as the left-side seat bolt, the T-nut plate, that the seat bolt threads into, falls out of its recess in the rear fender and lands on the ground.

When we complained to Kawasaki about our issues with the T-nut plate falling out every time we opened up the airbox, they agreed that it was an issue. Now, three years later, it is still an issue. We tried Super Glue to keep the T-nut in the fender; it cracked. We tried silicone sealant; it spun. We tried Shoe Goo; it lasted for a while. Finally, we reverted to the only solution left; we bent over and picked up the T-nut plate every time it fell off. We were defeated.

Luckily, Bolt MX Motorcycle Hardware read our complaints and came up with a true-to-life solution with its Kawasaki rear-fender Perma-Nut kit. The Bolt MX’s Perma-Nuts differ from the standard Kawasaki T-nut plate in that the threaded tubular extension, that the airbox cover bolt threads into, has a lip at the top of the tube that has a larger diameter than the stock threaded tube and hole in the plastic fender. So, when you tighten the Bolt’s Perma-Nuts the first time, the large lip is pulled through the Kawasaki fender plastic, which means that it can’t fall out. Problem solved.

Installation is a snap. You use the stock seat bolt to pull the Perma-Nut plate through the plastic fender. It takes about 10 minutes to do both sides of the Kawasaki. Of course, the job of installing them is made easier because the stock T-plates fall out and don’t have to be removed.

DIGITS? $14.99 (two Perma-Nuts)—www.boltmx.com or (805) 466-6686..

MXA RATING: Bolt MX solved the problem that has stymied Kawasaki since 2019. Well worth the money.

• MXA VIDEO: 2022-1/2 HUSQVARNA FC250 ROCKSTAR EDITION VIDEO TEST

• MXA PRODUCT SPOTLIGHT: BRIDGESTONE BATTLECROSS X31 TIRES

“The newest member of the Battlecross X series is here. The Battlecross X31 tire is made for a broader range of intermediate terrain in big bike sizes. Starting where the X30 left off, the X31 is enhanced with bunker groove technology for greater traction on both harder and softer terrain.

Bunker grooves work by improving casing flex, which improves biting edges for traction in softer conditions. Also, the cooling fins keep the feel consistent throughout your moto.” —Bridgestone’s Phil Simons. The retail price is $129.87 (front tire), $140.14 (rear tire) at www.bridgestone motorcycletires.com or your local dealer.

• FREE DIRT BIKE! FILL OUT MXA’S SURVEY FOR A CHANCE TO WIN THIS SSR BIKE

This is your chance to win this SSR SR140TR. It is loaded with premium components including disc brakes, upside-down forks, an adjustable shock and more. The MSRP of this bike is over $2000. But you can win it for free! All you have to do to be entered in the drawing is fill out the MXA Reader Survey.

Click here to take MXA’s survey. 

• GRAND PRIX SEASON SHORTENED FROM 20 TO 19 ROUNDS AS JAKARTA DROPS OUT


The FIM World Motocross Championship promoters “regret to inform that the MXGP of Jakarta that was set to host the 13th round of the FIM Motocross World Championship on the 2nd and 3rd of July has been canceled. Despite the best efforts by the local organizer, it has not been possible to secure the proper running of the event for this year. The FIM looks forward to returning to Jakarta for the 2023 FIM Motocross World Championship,” but for now the focus is on the other MXGP of Indonesia which will take place in Samota-Sumbawa on the June 26. Plus, if you haven’t noticed, Oman will host the final MXGP of the year on September 4.

MXA AD OF THE WEEK: JOE CAMEL & COORS BEER INVITED YOU TO THE 1989 DALLAS SUPERCROSS

• MXA VIDEO: 2022-1/2 KTM 250SXF FACTORY EDITION VIDEO TEST

• THE FRIENDS OF STEVE McQUEEN CAR & MOTORCYCLE SHOW ON SUNDAY, JUNE 5

There is a 50th Anniversary “On Any Sunday” dinner on Saturday, June 4, and the Steve McQueen Car & Motorcycle Show on Sunday, June 5. All proceeds from these events will go to benefit the “Boys Republic,” a private, nonprofit, nonsectarian school and treatment community for troubled youngsters in Chino, California, where Steve McQueen spent time in his youth. For more info on the Steve McQueen Rally, “On Any Sunday” dinner or Steve McQueen Car & Motorcycle show got to www.stevemcqueencarshow.com

• 2022 GREAT PLAINS VINTAGE MOTOCROSS SERIES: NEXT RACE JUNE 5

For more info go to www.greatplainsvintagemx.org

HOW SMART DO YOU HAVE TO BE TO SUBSCRIBE TO MXA? YOU SUBSCRIBE AND GET A $25 ROCKY MOUNTAIN GIFT CREDIT—SEEMS SIMPLE


You can’t afford not to subscribe, because when you order a subscription, Rocky Mountain ATV/MC sends you a $25 gift credit to use on anything you want from their massive selection. Plus, subscribers to MXA can also choose to get the digital mag on their 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. Do we have to mention the $25 Rocky Mountain ATV/MC gift card again? You can’t lose on this deal? Call (800) 767-0345 or Click Here

• MXA PRODUCT SPOTLIGHT: FMF RACING YAMAHA YZ450F KICK PLATE

Alex Martin ClubMX Yamaha YZ450F FMF Muffler Shield
As seen on the Star Racing Yamaha and ClubMX/Muc-Off teams, FMF Racing has been making a unique FMF heat shield for the base of the Yamaha muffler to protect the rider from heat and to protect the muffler from wear dam- age when the extra plastic is trimmed off. Now, this trick little part is available for 2019-2022 model Yamaha YZ250Fs and YZ450Fs to boost the durability of your muffler and your riding gear. The retail price is $89.99 at www.fmfracing.com or (310) 631-4363.

2022 AMA 250/450 NATIONAL MOTOCROSS CHAMPIONSHIP STARTS THIS  SATURDAY


2022 AMA NATIONAL MOTOCROSS CHAMPIONSHIP
May 28…Pala, CA
June 4…Hangtown, CA
Jun 11…Thunder Valley, CO
June 18…Mt. Morris, PA
July 3…Red Bud, MI
July 9…Southwick, MA
July 16….Millville, MN
July 23….Washougal, WA
Aug. 13…Unadilla, NY
Aug. 20…Budds Creek, MD
Aug. 27…Crawfordsville, IN
Sept. 3…Pala, CA

• 2022 AMA NATIONAL CHAMPIONSHIP TV SCHEDULE: IS IT THE BEST OR THE WORST EVER?


It depends whether you subscribe to MAV-TV. Or, if you’re okay with just one moto shown on the three NBC shows. No matter, this is it.

• TENTATIVE 2022 RACE SCHEDULES

The World Vet returns on November 3-6, 2022. The most thrilling and chilling section of Glen Helen is the 70 mph charge to the steeply banked 180-degree first turn. 

2022 AMA NATIONAL MOTOCROSS CHAMPIONSHIP
May 28…Pala, CA
June 4…Hangtown, CA
June 11…Thunder Valley, CO
June 18…Mt. Morris, PA
July 3…Red Bud, MI
July 9…Southwick, MA
July 16….Millville, MN
July 23….Washougal, WA
Aug. 13…Unadilla, NY
Aug. 20…Budds Creek, MD
Aug. 27…Crawfordsville, IN
Sept. 3…Pala, CA

2022 FIM GRAND PRIX CHAMPIONSHIP (TENTATIVE)
Feb. 27…Matterley Basin, England
Mar. 6…Mantova, Italy
Mar. 20…Villa La Angostura, Argentina
April 3…Agueda, Portugal
April 10…Trentino, Italy
Apr. 24…Kegums, Latvia
May 1…Orlyonok, Russia (CANCELED)
May 8…Maggiora, Italy
May 15…Rio Sardo, Sardinia
May 29…Intu Xanadu, Spain
June 5…Ernee, France
June 12…Teutschenthal, Germany
June 26…Samota-Sumbawa, Indonesia
July 3… Jakarta, Indonesia (CANCELED)
July 17…Locket, Czech Republic
July 24…Lommel, Belgium
Aug. 7…Uddevalla, Sweden
Aug. 14…KymiRing, Finland
Aug 21…St. Jean d’ Angely, France
Sept. 4…Afyonkarahisar, Turkey
Sept. 11…Oman

2022 AMA SUPERCROSS CHAMPIONSHIP
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. 15…Amarillo, TX
Jan. 21-22…Oklahoma City, OK
Jan. 29…Greensboro, NC
Feb. 4-5…Reno, NV
Feb. 11-12…Denver, CO

2022 WORLD SIDECAR MOTOCROSS CHAMPIONSHIP
Apr. 24… Holland
May 22…Czech Republic
June 12…Holland
June 26…Ukraine
July 3…Estonia
July 10…TBA
July 23…No. Ireland
July 31…Germany
Aug. 7…TBA
Aug. 28…Czech Republic
Sept. 4…Slovenia
Sept.18…Germany

2022 SATURDAY AT THE GLEN RACE SCHEDULE
Apr. 2…Spring Series #1
Apr. 23…Spring Series #2
Apr. 30…Spring Series #3
May 7…Spring Series #4
May 14…Spring Series #5 (National Track)
June 11…Summer Series #1
June 25…Summer Series #2
July 9…Summer Series #3
July 30…Summer Series #4
Aug. 13…Summer Series #4 (National Track)
Sept. 10…Fall Series #1
Sept. 17…Fall Series #2
Oct. 1…Fall Series #3 (National Track)
Oct. 15…Fall Series #4
Oct. 22…Fall Series #5
Nov.r 12..Winter Series #1
Nov. 19…Winter Series #2
Dec. 3…Winter Series #3
Dec. 10…Winter Series #4 (National Track)

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

2022 CANADIAN TRIPLE CROWN SERIES
June 5…Kamloops, BC
June 12…Drumheller, AB
June 19…Pilot Mound, MB
July 3…Walton, ON
July 10…Courtland, ON
July 17…Ottawa, ON
July 24…Moncton, NB
July 31…Deschambault, QC
Aug. 14…Walton, ON

2022 AUSTRALIAN NATIONAL CHAMPIONSHIP
Mar. 27…Wonthaggi
Apr. 10…Mackay
May 1…Wodonga
June 26…Maitland
July 24…Coffs Harbour
Aug. 14…Queensland Park
Aug. 20…Coolum (Saturday)

2022 MICHELIN BRITISH CHAMPIONSHIP
Mar. 20…FatCat
May 1…Landrake
May 29…Lyng
June 26…Cusses Gorse
Aug. 7…TBA
Sept. 4…Hawkstone

2022 REVO BRITISH CHAMPIONSHIP
Mar. 13…Culham
Apr. 17…Foxhill
May 8…Lyng
May 22…Canada Heights
June 19…Blaxhall
July 10…Fatcat
July 31…Whitby
Sep. 11…TBA

2022 WORLD TWO-STROKE CHAMPIONSHIP
April 16…Glen Helen, CA

2022 MOTOCROSS DES NATIONS
Sept. 25… Red Bud, MI

2022 WORLD VET MOTOCROSS CHAMPIONSHIP
Nov. 3-6…Glen Helen, CA

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The MXA wrecking crew is everything moto related. Check out our MXA YouTube channel for bike reviews, Supercross coverage, rider interviews and much more. And don’t forget to hit that subscribe button.

• TALK MOTO WITH ON MXA’S FACEBOOK GROUP CHAT

We love everything moto and want to bring all moto junkies together into one place to share their two cents, ideas, photos, bike fixes, bike problems and much more. To check it out first you must need to or already have a Facebook account. If you don’t, it isn’t much work and you could even have an alias so nobody knows it is you. To join click HERE. After you request to join we will accept your request shortly after.

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Photos Credits: Chris Clark, Josh Mosiman, Kawasaki, GasGas, KTM, Nitro Circus, Trevor Nelson, HRC, Husqvarna, Daryl Ecklund, Yamaha, MXA archive ,

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