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FMF SST Exhaust Review
…evidence. Introduced in 2001 and used by the Yamaha of Troy MX team, the $249.99 FMF SST series is the California company's top-of-the line expansion chamber. FMF claims the key to the SST's performance is its patented shape and the use of what it calls "sonic wave technology." The 19-gauge steel SST…
2009 KTM 250 XC-W Motorcycle Review
…hand. The consequences of sloppy clutch work are more severe with the 2-stroke as well. We were reminded the hard way about the downfall of expansion chambers as our stock pipe received a fist-sized dent right away. Every ride resulted in at least some additional scratches or minor dings. For one, we…
2008 KTM XC Off Road Lineup
…confidence to go up any trail encountered. The low-end torque was tremendous and overall it was the bike of choice for our day of trail riding. Expansion chamber and all, the KTM 300 XC has long been a favorite of off-road riders and the 2008 version can compete with anything you'll find in the modern 4…
2008 KTM 125SX &144SX First Ride
…stand still. In fact, the only way to tell the two apart is from the bikes displacement markings in the graphics and the slightly different expansion chamber design.KTM has always been known for its potent 2-stroke mills and this year's engine is no exception. The Austrian engineers focused on getting…
2002 Yamaha YZ125 vs YZ250F
…time to fire up these screamin' tiddlers. A light prod or two on the 125s kickstarter has the stroker belching Yamalube-tinged exhaust out its expansion chamber and stinger muffler. Revs rise and fall respond in direct and immediate response to the throttle and 38mm Mikuni TMX carburetor, as the 2-stroke…
2009 Yamaha YZ250 2-Stroke Bike Test
…250F class which is much more realistic.Our quartet?s throaty rumble and whir of cam chains was constantly interrupted by the zingy sound of an expansion chamber and shorty muffler. The AMA now allows 250 2-strokes to run in the 250F division, which has opened a whole new avenue for non-professionals. Since…
2008 Aprilia SX 125 & RX 125 First Look
…fed to the water-cooled engine through a 28mm Dell'Orto carb while burnt fumes are expelled at the Euro 3 emission standards via an elongated expansion chamber and stinger. Premix is distributed remotely so riders won't have to bust out their Ratio Rite while filling the 2.6-gallon tank.Aprilia mounted…
S&S Reveals Innovative X-Wedge Engine
…-cooled V-Twin without a corresponding increase in cooling area, problems arise. As the displacement grows, more heat is generated in the combustion chamber, so if there is not an adequate amount of cooling surface for the cylinder and head to dissipate heat, the motor will run hotter than desired. An additional…
2006 Bonneville Speed Trials Recap
…carburetion and wide-ratio gearing, a carryover from their recent drag racing forays. They also fabricated a new drag racing exhaust with a larger expansion chamber and swapped their dirt-friendly O-ring chain for a standard unit with marginally less drag. They even threw on a steering damper in anticipation…
Euro Gossip July 2006
…full power (6.2bhp) version of its RS12 moped is the fastest accelerating 50cc scooter in the world. Fitted with low-profile tires, an inverted expansion chamber, inverted forks and a spoiler as part of the styling exercise, it is also expensive at $2,755. GermanyWe have mentioned it before, but more details…
Search Suggestions: Cr125 | Ktm 300 | 250 Enduro | Dyno | 250sx | 2 Stroke | Dyno Chart | Ktm Xcw | Aprilia Sxv 550 | Ktm
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