Manufacturer

Engine Size

Engine Type

Model Year

MXA BUYER’S GUIDE TO THE WIDE WORLD OF 2024 FOUR-STROKES


With the 2025 models just peeking over the horizon, it’s a good chance to catch up on the bikes that are still on the showroom floors—the 2024 250, 350 & 450 four-strokes

MXA RACE TEST: THE REAL TEST OF THE 2024 YAMAHA YZ450F


If you own a 2023 Yamaha YZ450F, then you already own a 2024 YZ450F—except with more hours on it than the new one on the showroom floor.

FLASHBACK! INNERMOST SECRETS OF JOSH MOSIMAN’S PALA NATIONAL YZ450F


Taking testing to the nth degree—inside MXA’s Yamaha YZ450F as set-up for the 2023 Pala 450 National

2023 MXA 450 Shootout video

2023 MOTOCROSS ACTION’S 450 SHOOTOUT VIDEO


This is the one you should read! We compare the CRF450, YZ450F, 450SXF, KX450, FC450, RM-Z450, and MC450F against each other in the most highly anticipated video of the year

2024 Yamaha YZ450F

MXA VIDEO: WE TEST THE 2024 YAMAHA YZ450F


The Yamaha YZ450F won our Shootout last year, but it’s not perfect. Josh Mosiman and Dennis Stapleton talk pros and cons of the 50th anniversary YZ450F in this video

MXA RETRO TEST: WE RIDE STEFAN EVERTS’ 2003 WORKS YAMAHA YZ-Fs


Not just one of Stefan Everts Championship bikes, but both of them at the same track on the same day

TEN YEARS AGO TODAY: COMPLETE TEST OF THE 2013 YAMAHA YZ450F


Yamaha has to convince you that their backwards engine idea is good and until they do they are paying the “Penalty of Taking the Lead”

MXA RETRO TEST: WE RIDE TIM FERRY’S THREE-SPEED 2002 YAMAHA YZ426


The three-speed tranny was not just for Supercross, Yamaha said they also ran the three-speed outdoors, but with a smaller rear sprocket.

Eli Tomac 2023 Yamaha YZ450F

INSIDE ELI TOMAC’S STAR RACING YAMAHA YZ450F


MXA’s Travis Fant gets up close and personal with Eli Tomac’s race bike, the day before he got hurt

2023 MXA 450 FOUR-STROKE SHOOTOUT: GASGAS VS. HONDA VS. HUSQVARNA VS. KAWASAKI VS. KTM VS. SUZUKI VS. YAMAHA


Everything you need to know about the 450 class of 2023 is right here. After you read MXA’s 450 shootout, you’ll know everything you need to know about the best bikes in the 450 class

2024 450 Shootout MXA

2024 MOTOCROSS ACTION 450 SHOOTOUT VIDEO


It’s finally here! We lined up the all-new Kawasaki KX450 and GasGas MC450F models against the rest of the 450 class in a head-to-head comparison

MXA RACE TEST: THE REAL TEST OF THE 2023 YAMAHA YZ450F


Yamaha’s willingness to address the human element and eliminate the grievous flaws of the previous models is what sets the 2023 YZ450F apart from its 12 predecessors

MXA RETRO TEST: WE RIDE GRANT LANGSTON’S NATIONAL CHAMPIONSHIP YAMAHA YZ450F


Unlike most factory riders, Grant Langston does not buy into the “works forks” syndrome. Grant felt they were too stiff—not too firm in motion, but too stiff for the YZ450F chassis. Grant ran the stock 48mm forks becaise they fed more flex into the front end to help the YZ450F turn.

2023 Yamaha YZ450F

MXA VIDEO: WE TEST THE 2023 YAMAHA YZ450F


The 2023 Yamaha YZ450F is all-new and they’ve changed practically everything we’ve ask for. Josh Mosiman tests the bike at the Star Racing Yamaha GOAT Farm

MXA RETRO TEST: WE RIDE GRANT LANGSTON’S 2007 NATIONAL CHAMPIONSHIP YAMAHA YZ450F


Grant Langston’s 2007 Yamaha YZ450F was the easiest to ride AMA National bike we have ever tried

Alex Martin ClubMX YZ450F

MXA VIDEO: WE TEST ALEX MARTIN’S CLUB MX YAMAHA YZ450F


Watch the video about a bike that was built for a troll and that graced the cover of Motocross Action magazine

FIRST LOOK! 2023 YAMAHA YZ450F ALL-NEW


The YZ450F brings a new look for 2023!

MXA RACE TEST: GRAND PRIX RACING ON THE YAMAHA YZ450FX & HONDA CRF450RX


When WORCS went to Lake Havasu, MXA knew it would be the place to test our YZ450FX and CRF450RX cross-country bikes, even if we had to ride through the lake

MXA RETRO TEST: WE RIDE WORLD CHAMP ROMAIN FEBVRE’S 2015 YZ450FM


MXA’S Daryl Ecklund didn’t just ride Febvre’s Grand Prix YZ450FM, he got to ride it all by himself on the Maggiora track in Italy

Alex Martin ClubMX Yamaha YZ450F

WE RIDE ALEX MARTIN’S MUC-OFF/CLUBMX YAMAHA YZ450F


With Alex being just 5-foot-4 and weighing only 145 pounds, his bike featured raised footpegs, a cut-down subframe and lowered seat. MXA test riders are used to riding oddly configured race bikes, but Alex’s custom tailored “rider triangle” was a challenge

MXA RACE TEST: THE REAL TEST OF THE 2022 YAMAHA YZ450F


Thanks to its Kayaba SSS suspension, incredible reliability and broad powerband, the YZ450F is a good value for guys who doesn’t want to spend hard-earned cash post-purchase

MXA RETRO TEST: WE RIDE JAMES STEWART’S 2009 L&M RACING YAMAHA YZ450F


James Stewart’s 2009 AMA Supercross-winning YZ450F is a piece of history, chock-full of personal touches that only James Stewart would like

Motocross Action 2022 450 Shootout

THE REAL DEAL! 2022 MOTOCROSS ACTION 450 SHOOTOUT VIDEO


It’s finally here! We go in-depth on all seven 2022 450 four-stroke models in this full-feature video

MXA RETRO TEST: WE RIDE JUSTIN BRAYTON’S 2010 JGR YAMAHA YZ450F


The JGR Motocross team is the brainchild of Coy Gibbs, younger son of famous football coach and NASCAR race team owner Joe Gibbs

2022 Yamaha YZ450F

MXA VIDEO: WE TEST THE 2022 YAMAHA YZ450F


The Yamaha YZ450F received some minor updates for 2022. Learn all about it here

2022 YAMAHA YZ450F

FIRST LOOK! 2022 YAMAHA YZ450F & YAMAHA YZ250F


The new Yamaha’s are here!

WHAT YOU NEED TO KNOW! 2021 MXA 450 FOUR-STROKE SHOOTOUT


Motocross racers love shootouts, until the bike they spent $10,000 loses; They think their brand is the fastest bike, until they see a dyno chart; They think that weight doesn’t matter on motocross bikes, but if their girlfriend gains a few pounds they go ballistic

MXA GOES INSIDE DYLAN FERRANDIS’ STAR RACING YAMAHA YZ450F


Think of it as a preview of the mods that Eli Tomac’s YZ450F will get in 2022

2021 450 Shootout video MXA

THE REAL DEAL! 2021 MOTOCROSS ACTION 450 SHOOTOUT VIDEO


It’s finally here! MXA’s seven bike, 450 shootout video

2020 YAMAHA YZ450F-7553

MXA TECH SPEC: 5 THINGS YOU NEED TO KNOW ABOUT THE 2020-2021 YAMAHA YZ450F


How to fix the 2020-2021 Yamaha YZ450F with a few common sense moves and crack 60 horsepower with something out-of-the-box

2021 MXA SHOOTOUT: YAMAHA YZ450F VS. KAWASAKI KX450


Polar opposites on the track, these two relatively unchanged 2021 models, trade pluses and minus—and your intended use makes a difference

2021 Kawasaki KX450 vs. 2021 Yamaha YZ450F shootout

2021 YAMAHA YZ450F VS. 2021 KAWASAKI KX450 SHOOTOUT VIDEO


Which bike is better for you? We break apart the details in our latest MXA video

2021 Yamaha YZ450F

MXA RACE TEST: THE REAL TEST OF THE 2021 YAMAHA YZ450F


A great powerband. Not an incredibly powerful engine down low, but a powerband that helps both the rider and chassis work better together

2021 YAMAHA WR250F

FIRST LOOK! 2021 YAMAHA WR450F & WR250F


Yamaha Enduro models for the 2021 year… the ones with the headlights

2021 Yamaha YZ450F First Ride Video

2021 YAMAHA YZ450F FIRST RIDE VIDEO


Shaking down our brand new 2021 Yamaha YZ450F, which sadly only gained new graphics and plastic colors

2021 450 VIDEO BUYER’S GUIDE? SEE THEM IN ACTION BEFORE YOU DECIDE


Learn more about the 2021 KTM 450SXF, Kawasaki KX450, Yamaha YZ450F, KTM 350SXF and Husqvarna FC450 BY watching some awesome motocross action

WE RIDE DOUG DUBACH’S GYTR/DR.D YZ450F & TELL YOU WHAT’S INSIDE


When MXA wanted to iron out the wrinkles on our 2020 Yamaha YZ450F, we asked for help from the man who made the YZ450F what it is today

FIRST LOOK! 2021 YAMAHA TWO- & FOUR-STROKE MOTOCROSS MODELS


The big focus for the Yamaha engineers was updating the 2021 Yamaha YZ250F— here are the changes they made to all their motocross bikes

FIRST LOOK! 2021 YAMAHA OFF-ROAD & TRAIL MODELS


We snuck in a bunch of other 2021 Yamaha models while we were at it. Check them out!

MXA RACE TEST: THE REAL 2020 450 FOUR-STROKE SHOOTOUT


One last chance to see what is sitting on the showroom now, while waiting for the 2021 models to arrive. You might get a good deal now!

MXA RACE TEST: THE REAL TEST OF THE 2020 YAMAHA YZ450F


Everything you need to know about the 2020 Yamaha YZ450F — not just how it performs, but why

2020 450 mxa shootout

THE REAL DEAL! 2020 MOTOCROSS ACTION 450 SHOOTOUT VIDEO


You waited for it. It’s here! Everything you need to know about the YZ450F, RM-Z450, 450SXF, KX450, FC450 & CRF450

2020 YAMAHA YZ450F-7553

2020 YAMAHA YZ450F FIRST RIDE IMPRESSIONS VIDEO


At first glance it looks the same, but once you dig in to it, there are a lot of updates on the 2020 Yamaha YZ450F

2020 YAMAHA YZ450F-7290

2020 YAMAHA YZ450F BIKE BREAKDOWN WITH YAMAHA’S TRAVIS PRESTON


Learn all about the new 2020 Yamaha YZ450F in this detailed bike breakdown video

2020 YAMAHA YZ450F

FIRST LOOK! ALL-NEW 2020 YAMAHA YZ450F & 2020 YZ250F


Yamaha focused on updating the engine on the 2020 YZ450F

2020 YAMAHA YZ125X

FIRST LOOK! 2020 YAMAHA OFF-ROAD YZ125X, YZ250X, YZ250FX, YZ450FX MODELS


Yamaha release the YZ125X two-stroke as an all-new model for their off-road lineup

2019 450 shootout

MXA SHOOTOUT: THE REAL 2019 450 FOUR-STROKE SHOOTOUT


The most comprehensive 2019 450 shootout — complete with all the stuff that no one else will ever tell you. This is the real deal shootout

MXA RACE TEST: THE REAL TEST OF THE 2019 YAMAHA YZ450F


My kingdom for a blue valve cover, four wheel spacers and two axle lugs — and why they matter

MXA RIDES CYCRA RACING’S PROBLEM SOLVING 2018 YAMAHA YZ450F


Testing a lowered chassis, pumped up engine and Rekluse clutch on a bike that loved each modification

Heath Voss 2004 YZ450F

WE RACE HEATH VOSS’ 2004 WORLD CHAMPIONSHIP YZ450F


We didn’t think we were going to crash the factory steed the day before the National

MXA FIRST RIDE VIDEO | 2019 YAMAHA YZ450FX


Yamaha released an offroad version of the 2019 Yamaha YZ450F that we rode back in South Carolina on some tight GNCC style trails

2019 450 shootout

2019 MXA 450 FOUR-STROKE SHOOTOUT VIDEO


You may not like the results, but when you race them instead of riding them for three days with factory mechanics at your beck and call—this is what you learn

MXA FIRST RIDE VIDEO: 2019 YAMAHA YZ450F—NOT REALLY NEW, BUT BETTER


We applaud Yamaha for finding things that work without having to revinvent the wheel—although the wheels are involved

FIRST LOOK! 2019 YAMAHA YZ450F & ALL-NEW YZ250F


For 2019 Yamaha developed an all-new electric start YZ250F. It looks identical to the 2019 YZ450F which received much needed refinements as well

2018 MOTOCROSS ACTION 450 SHOOTOUT: THE COMPLETE TEST, TEXT & TRUTH


More than you want to know, unless you want to know how the 2018 450s really rate

MAKE YOUR 2018 YZ450F JUST LIKE THE WORLD VET CHAMP’S


Doug didn’t just test the YZ450Fs for Yamaha—he raced them, winning 22 of his World Vet Championships on them (the other four were on YZ250 two-strokes)

SHORTEST SHOOTOUT IN HISTORY: BITE-SIZE 2018 MXA 450 SHOOTOUT


Remember those long shootouts that you scanned briefly before getting distracted by the dog? Well, here is the quick, easy and complete 2018 450 shootout in bite-size format

THE GREATEST 450 SHOOTOUT VIDEO EVER: IT’S LONG, INDEPTH & ACCURATE


The MXA wrecking crew waited to get it right & you waited to find out how the top six really rank

MXA MOTOCROSS RACE TEST: 2018 YAMAHA YZ450F


If we were looking for a phrase to accurately describe the 2018 YZ450F powerband, we would use “filled in.” The result is one long usable powerband. Every Yamaha YZ450F owner will love the improved power delivery.

THE BIKE THAT TURNED A PRIVATEER INTO A FACTORY STAR


We build a Dean Wilson Replica Yamaha YZ450F