KTM 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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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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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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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 Factory Edition KTM 250SXF is $1200 more than the stock 2024 KTM 250SXF, and the GasGas MC250F Factory Edition is almost $2000 over the 2024 MC250F price. Still, the extra money buys you the much-improved frame and a healthy list of…
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If someone gets to ride the champ's bike — it might as well be MXA
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If you’re looking for the best 125 to race the Amateur Nationals or 125 money classes, like the Pasha 125 Open races, the new-generation KTM 125SX isn’t ready for the big time yet
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KTM’s engineers did a very good job of addressing the bad things about the 2024 production KTM 450SXF and enhancing the good stuff. And, yes this is the 2025 model.
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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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Thankfully KTM picked up the two-stroke gauntlet thrown down by Honda, Kawasaki and Suzuki and their efforts kept the two-stroke alive
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If there are no cam, valve, piston, throttle body, fuel pump or crank differences between the FC350, MC350F and 350SXF. Why do all three engines run so differently on the track? The answer lies in four simple parts.
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In 2004 Kawasaki had just launched its all-new KX250F. The team offered the four-stroke to James, and he tried it during the pre-season. He decided to stay with the KX125 two-stroke instead
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Was the KTM 380SX faster than the KX500 and CR500 of their times? Yes and no. Why didn't the unique KTM 380SX mid-size two-stroke catch on? It should have
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Much of the credit for the improvements goes to homegrown solutions, the ideas and concepts developed by local racers, hardcore KTM owners and the race teams, that KTM implemented into the 2014 KTM 450SXF.
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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
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If you are looking to launch your young one into the motocross world, move him up to a bigger bike or just looking for some backyard fun—look no further
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The 2024 KTM 350SXF can be ridden flat out at high rpm like a 250 or torqued in the midrange like a 450.
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The MXA wrecking crew tested, documented, inspected, theorized and calculated every conceivable facet of the 250 four-stroke class for 2014. Your future bike now!
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Even though it is fun to fly to some far-away track to test a bike, it isn’t much of a test. MXA prefers to test bikes on the “dirt dyno.” What is the dirt dyno? It is the tracks that we have done a thousand laps on.
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We tested each bike in its stock form, and put 20 hours on each bike to, try to make them ultimately comparable to each other and to keep things equal we installed the same tires on each bike
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The King of 250 Two-Strokes had no rivals for the throne in 2014
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MXA's Daryl Ecklund takes KTM's RC390 Sport Bike to a road race track to test it and himself
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The MXA wrecking crew matches its motocross skill against the KTM X-Bow
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