The May 2015 cover of MXA highlights three new bikes that came out late in the 2015 model year. The KTM 450SXF Factory Edition, KTM 250SXF Factory Edition and Yamaha YZ250FX cross-country bike.

All the things you need to know about the development of the 2015-1/2 KTM 450SXF Factory Edition IV can be found in this special bike test.

New for this year is the KTM 250SXF Factory Edition. It is a very fast, high revving, lightweight and creative improvement on the previous 250SXF.

Even if you’ve never taken a performance enhancing drug, you can still fail a WADA drug test. We show you how…if that’s what you want to do.

MXA’s master of vintage bikes, Tom White, takes you on a tour of the “10 Most Collectible Motocross Machines.” Tom oughta know what makes a good collection—since he owns 140 vintage motocross bikes.



MXA has a unique relationship with Roger DeCoster. Not only did we cover his five World Motocross Championships, tenure at Team Honda and switch to KTM, but Roger also spent two years working with us. You’ll want to hear what he has to say about being a motocross star and working with motocross stars.

Yamaha has big plans to revitalize their offroad line. The first step was the YZ250FX. Based on the YZ250F motocross bike, it is a very interesting Japanese offroad bike.

John Basher and Daryl Ecklund spent their winter vacation racing snow bikes in the frozen North. Daryl (above) grabs a little air…with and without his Timbersled.

Brock Hoyer spent so much time in the air on the Timbersled snow bike that he actually hit the tree branches.

To keep abreast of what’s changing in the moto world, you need to read “On The Mainjet.”

Got a question? Ask the MXperts.



This month Bones Bacon delves deep into the most forgotten part of PSF and TAC air forks—the parts that don’t need air.

Every month MXA tests the products that you might be tempted to buy and that includes LightSpeed’s carbon fiber transponder holder.

The closest the Supercross racers ever came to striking and starting a union came in Las Vegas in 1995. We take you there.

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