Bike Tests

There were so many frame changes for 2025 that the whole nature of the 450SXF chassis changed from ultra-stiff to forgiving
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MX-Tech is a small suspension manufacturer out of Bradley, Illinois, and they specialize in making their own high-end A-kit suspension for all brands of bikes—from modern to vintage...and in our cases, Honda two-strokes.
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We built it using a 2023 GasGas MC350F foundation, Cylinder Works 366 engine, shortened Husqvarna Cone Valve forks/shock linkage & lots of love
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The 2014 Honda CRF450 Is slow. We can't dance around the elephant in the room. It doesn't make much horsepower, and it signs off very early. One caveat: don't try to rev it out. It is most competitive when kept below 8500 rpm.
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We list 15 updates to the Kawasaki KX250 for the 2025 model year. It was very fast in 2024 and promises to be even faster in 2025
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Dubach Racing & Development jumps into the two-stroke market and MXA tests their all-new YZ85 set-up
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Ten year ago the MXA wrecking crew was the first to put the magical 2008 Honda CRF450 up against the newest high-tech Honda CRF450 of the time
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It seemed like a brilliant idea at the time. Plus, it answered a lot of questions that people asked. I's race the first AMA 450 National on a 350 and the second one on a 450. The problem is that the solution isn't applicable to the AMA…
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MXA took them trail riding, we spun laps on the Glen Helen motocross track, we raced them, we climbed Mt. Saint Helen and we rode it underwater (see video)
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We had the two top 500cc two-stroke builders make the wildest CR500 and KX500 known to man—with video of both bikes
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Lots of power, large fuel tank, wide ratio transmission, hand guards, skid plate, O-ring chain and mounting points for the GYTR fan kit
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Why does our brand-new 2014 Yamaha YZ125 look eight years old?
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The 250SX has a 66.4mm bore with a 72mm stroke, while the 300SX shares the same bottom end, but its bore and stroke measures at 72mm x 72mm. The bigger bore adds up to an extra 43cc to make the 300SX a 293cc.
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The biggest update on the 2024 Husky TC65 is the fact that you can now adjust the seat height of the TC65 Junior Cycle between low, standard or tall positions 
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From a distance it looks idenctial to a. full-size GasGas MC125. No more oddball design choices, just a down-sized version of the big bikes
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Two-strokes are not approved by the powers-that-be at the AMA, MXsports, FIM, BLM or EPA—which wins us over instantly
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What's new? Updated rear linkage, new fork and shock settings, a lighter spring rate on rear shock and new delta-shaped piston shims in the fork and revised engine mounts
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Back in 2014 the Kawasaki KX450F was a BNG bike that didn't even get BNG, but the KX450F engine was a thing of beauty. It iswas smooth down low, rolled on with authority and was the best all-around race engine of 2014.
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Marvin & Mosiman getting it twisted into a host of really cooled outside berms
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The brand-new 2025 Husqvarna TC85 isn't based on last year's minicyle, but is instead borrows its design tweaks from the proprietary layout and look of the full-size TC125
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If you can feel the issues with the 2024-'25 Kawasaki KX450, here are a few clues and tips to make the most your issues go away
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This is a classic example of all that can go wrong with a hopped-up bike
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