Bike Tests

KTM saved the two-stroke when Honda, Suzuki and Kawasaki dropped them, and Yamaha chose benign neglect for the YZ125 and YZ250.
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There is also a 2026 KTM 50SX Factory Edition model
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Coming to an Authorized KTM dealer near you Starting in September of 2025
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Two American entrepeneurs, Pasha Afshar and Nick Mairose, have single-handedly put Fantic on the American motocross map and while Fantic has opened an American enterprise, Pasha and Nick are still the best promotion they have.
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The most advanced two-stroke motocross bike of its time was just one step in Yamaha's drawn out two-stroke plan. It worked. The YZ250 is still in showrooms today
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The battle of the New Old Japanese Stock Versus the newest and Jazziest European concepts
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In the 300cc two-stroke category alone, TM offers two motocross models (one carbureted and one fuel-injected), and they offer the same two platforms in enduro models
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As a man who has tested motorcycles his whole life, I have a vast reservoir of worthless knowledge that can make any simple task more complicated.
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The only visible differences between 2026 and 2025 RM-Z's are the smaller radiator wing logo, yellow front number plate (instead of white) and the $100 price increase
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With some reasonable modifications, a CR450 can be transformed into a desert racer, enduro bike, supermoto bike, dirt tracker, TT racer, sidecar racer or even a road racer
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The 2025 RM-Z250’s forks are terrible. They are unbelievably stiff in motion. We drop the stock 5.0 N/mm fork springs for 4.8 N/mm springs or lower for smaller or slower riders.
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The KTM 450SMR is built off of the KTM 450SXF platform. It has the same engine, and for 2025 the Supermoto bike has the same frame as well
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The 2025 GasGas MC85 isn’t just a refresh, it is a top-to-bottom reinvention of one of the most important bikes in the youth racing scene.
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We built it using a 2023 GasGas MC350F as the foundation, Cylinder Works 366 engine kit, shortened Husqvarna Cone Valve forks/shock linkage & lots of love
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MXA's aim is to emulate real-world ownership with long-term durability tests. This allows us to give you, the reader, better and more detailed information on how each brand ages.
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Mark Chilson is a dreamer with the patience and talent to build one-of-a-kind bikes that are super detailed
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"Race teams are always searching for ways to lessen unsprung weight and get their 450 bikes close to 220 pounds; KTM has the opposite problem, thanks to its Factory Edition 450SXF."
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The Factory Edition of the GasGas MC450F owes more to KTM than the production 2025 GasGas MC450F—most notably in the suspension valving
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In 2004 Team Yamaha invited MXA to ride Chad Reed’s Supercross-winning Yamaha YZ250 two-stroke — That was a day to remember
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Today, only Yamaha, the KTM Group and Beta still make competitive motocross two-strokes. Honda gave up in 2007. Suzuki quit in 2008 & Kawasaki’s final run of 250 two-strokes petered out in 2007.
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When money is no object, John Basher is the best at spending it on YZ125s
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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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One important caveat in the dream-bike scenario is that the bike cannot have a 450cc four-stroke engine. Why would it? Four-strokes are readily available and thus not dreamy enough.
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Why didn't the unique 2000 KTM 380SX mid-size two-stroke catch on? Because it didn't have 1999's engine and suspension on it!
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This is a classic example of all that can go wrong with a hopped-up bike
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if you’re a serious racer who is looking to be competitive, we recommend finding a carbureted 125 or 150. KTM and Husky last made carbureted two-strokes in 2022, and GasGas’ last carbureted two-stroke was produced in 2023
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After the errors of the 2002, 2003 and 2004 CRF450 models, the 2006, 2007 and 2008 CRF450s have become industry standards.
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