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FMF SST Exhaust Review
…silencer to put it to the test. MCUSA's own 4-Stroke Nationals rider, Devin Watson, would supply subjective data from the seat of his 2003 KTM 250SX, and dyno testing would provide the empirical evidence. Introduced in 2001 and used by the Yamaha of Troy MX team, the $249.99 FMF SST series is the California…
2009 Yamaha YZ250 2-Stroke Bike Test
…our KX250F, the 231-pound machine has a distinct advantage in terms of sheer horsepower. The YZ put out 41 ponies on the Mickey Cohen Motorsports dyno while the most powerful F model spun up 34 (Honda) ? only 83 percent! However, the way that power is distributed across the rev range is where the differences…
2007 Triumph Speed Triple Comparison
…garage we were surprised by how delicious the 3-into-1 aftermarket Arrow exhaust looks and sounds. We were flabbergasted, however, when we compared dyno numbers from last year and noticed the Speed Triple had jumped up 13.5 horsepower!Achi machi... That's kind of just cheating isn't it? As we tried to…
2006 450F MX Shootout
…department. There's no denying that the Honda cranks it out, as it posted the highest horsepower numbers when we revved them out on the Two Brothers Racing dyno. The Honda was consistently above the competition through the entire powerband, maxing at 50.6 hp. From a seat-of-the-pants perspective, our test riders…
2006 CRF250R Project Bike Part II
…woods riding and cleaning up the jetting was first on our list. Additionally, we hoped to coax a bit more than the 35.8 ponies we pulled from the dyno during our MX shootout. For simplicity and affordability, we elected to stay away from time-consuming internal modifications on any of the bike's components…
2007 Suzuki V-Strom Comparison
…bike to break into the 11-second bracket (11.67 @ 113.48 mph), but it was also the only machine to pump out more than 100 ponies on our Dynojet 200i dyno. Nearly 104 HP was 14 more than the next-closest?V-Strom (103.7 vs. 89.5) - that's more than 15% of the Suzook's total power and it felt every bit of…
2002 Yamaha YZ125 vs YZ250F
…than the stroke). At bore and stroke dimensions of 77.0 x 53.6mm, the 249cc mill cranks out 32.1 rear-wheel horsepower on White Brothers' Dynojet 200 dyno at its peak. It's abundantly clear which bike has the edge in torque: the 250F takes the cake with a long, burly torque curve.In comparison, the YZ125…
2007 Streetfighter Comparo II
…British beauty brandishing an aftermarket exhaust along with a host of carbon fiber accoutrements out of the Triumph accessory catalog.Rolled onto the dyno, the Yamaha FZ1 displayed its horsepower stud status, producing just a whisker short of 130 ponies at the rear wheel.We'll get into the details of the…
2008 Ducati 1098 Comparison
…category, so the question was how close would it get to the opposition? Even though the 1098 makes an impressive 139 horsepower at 9600 rpm on the Area P dyno, it's only good enough to land it at the bottom of the horsepower heap, 11 hp shy of the fourth-best R1.On the up side, the 1098 posts a class leading…
2005 Ducati 999R Comparison
…,995 price tag or sneer at its relatively puny peak horsepower numbers. To be fair, these are legitimate concerns. But a glance at the comparative dyno torque chart shows that it's right up there with the Japanese literbikes. In horsepower terms, the 999R matches or exceeds the others, rpm to rpm, until…
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