KTM tests

The WP XACT air forks can do some things that spring cartridge kits can’t do and vice versa. Best of all, they come on the bike—no need to spend $2000 to $7000 on aftermarket forks if you learn how to use them. 
Read More...

There were so many frame changes for 2025 that the whole nature of the 450SXF chassis changed from ultra-stiff to forgiving
Read More...

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…
Read More...

We had the two top 500cc two-stroke builders make the wildest CR500 and KX500 known to man—with video of both bikes
Read More...

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.
Read More...

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…
Read More...

If someone gets to ride the champ's bike — it might as well be MXA
Read More...

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
Read More...

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.
Read More...

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.
Read More...

Thankfully KTM picked up the two-stroke gauntlet thrown down by Honda, Kawasaki and Suzuki and their efforts kept the two-stroke alive
Read More...

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.
Read More...

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
Read More...

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
Read More...

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.
Read More...

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
Read More...

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
Read More...

The 2024 KTM 350SXF can be ridden flat out at high rpm like a 250 or torqued in the midrange like a 450.
Read More...

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!
Read More...

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.
Read More...

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
Read More...

The King of 250 Two-Strokes had no rivals for the throne in 2014
Read More...