Author Archives : "karel kramer"

2007 KTM 250 SX-F Dirt Bike – First Test – Dirt Rider Magazine

Size Matters! – Find The Dirt Bike That Really Fits You – Dirt Rider Magazine

A perfect bike is one that fits you, works where you ride and at your speed. It should make you grin when everything is working great, and have readily available parts and service from a dealer you trust when it isn’t. Under those guidelines, one rider might be happiest on a KTM 525 and another [...]
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Quick And Dirty Twin-Chamber-Fork Seal Changes – Dr. Dirt – Dirt Rider Magazine

Modern dirt bikes have big, beefy forks with comparatively massive inner steel tubes to handle the rigors of current track and trail obstacles. The combination of inverted design and 47-50mm inner tubes solve any flex problems, but they bring their own headaches. For one, when you get big tubes, there is the problem of seal [...]
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The Keihin FCR Carb Rebuild With Zip-Ty Racing – Dr. Dirt – Dirt Rider Magazine

Tech How-ToA good portion of modern four-stroke engine performance is due to the Keihin FCR carburetor. An accelerator pump and a high-tech slide supported by four wheels make the FCR a relatively complex design. There are many parts that can wear out and get dirty or gummed up. There are a few shops that specialize [...]
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David Knight, Ricky Dietrich, Brandan Larson and Others – Dirt Rider Magazine

It is said that beauty is in the eye of the beholder. For instance, motorcycles that have a motohead drooling uncontrollably may leave an off-road guy snoozing. Intense but relatively compact and brief motos demand different strengths and setups than the usually much longer and terrain-based contests that make up off-road racing. No way is [...]
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Terrycable Footpeg Rebuild Kit – Dirt Rider Magazine

TerrycableFootpeg Rebuild KitYou can have a bike with a lot of miles under the tires, but it can still feel great if the controls-including sharp, level, fl op-free footpegs-are in decent shape. Maintaining these parts isn’t expensive unless you’re a chronic crasher. The exception is the footpeg situation. Even if you replace the pegs, if [...]
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New Bike Prep For Long-Term Savings – Dr.Dirt – Dirt Rider Magazine

Tech How-ToJust as you wouldn’t go wring out the motor before break-in, you shouldn’t ride a new bike without prepping it. If you do, you may not pay the price after the first few rides, but the tab will come due. When the bike is showroom clean the basic prep and setup takes less than [...]
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40th Annual Mammoth MX – Dirt Rider Magazine

The iconic Mammoth Mountain Motocross has long been a moto haven for folks looking to escape the city and summer heat to roost through giant pines. Traditionally the first weekend of the 11-day event is ceded to riders 30 years old and older with class breaks for 40 and 50. Despite the expense of travel, [...]
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Perfect Controls – Dr. Dirt – Dirt Rider Magazine

Each time we test a Johnny Campbell replica race bike, every test rider raves how perfect the riding position and control setup are. It helps that JC starts with a Honda, and the company takes extreme pride in its human engineering. But any one of Campbell’s bikes rises above the Honda family genes. At least [...]
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KTM Twin-Cam Top End Rebuild – Dirt Rider Magazine

Tech How-ToNow that KTM uses the late-model DOHC engine in SX and XC 450s and 505s, the numbers of these motors in use is rapidly growing and folks need to start looking inside these engines. Dirt Rider has pulled down an SX and an XC 450, and the internals were in essentially perfect condition. The [...]
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2009 Kawasaki KX250F Web Impression – Dirt Rider Magazine

We just spent our first day with the 2009 KX250F, and we could hardly wait.Honda is keeping their models secret for the moment, but everyone else has announced specs for their 250Fs, and Kawasaki is far and away the most changed and exotic model in the class. It is arguably an entirely new model, since [...]
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Kawasaki Promotes New Motocross Movie: Free Style Starring Corbin Bleu With Media Track Day – Dirt Rider Magazine

Despite the mainstream acceptance of motocross, it is still rare to see it portrayed correctly and in a positive light in mainstream movies. Kawasaki believes that a spring-’09 release of the feature film Free Style is one.It is no surprise that the movie’s star Corbin Bleu rides a green bike in the film. But it [...]
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Off-Road Honda CRF160R – Dirt Rider Magazine

Let’s say that you were let loose in a candy store to take whatever you wanted. You could pack up some bags and ration the haul over a long period of time or just stuff yourself in one sitting. But just because you can do something that doesn’t mean you should. This bike is a [...]
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