Yamaha TRX850 Motorcycle wallpaper – new harley bike wallpapers and backgrounds

Although the 270? crank concept has been attributed to Australian Phil Irving (of Vincent renown), the TRX was the first production motorcycle to feature this innovation. The 270? crank has an ignition sequence and an engine balance that yields something of the feel of a V-twin. Unlike 180? & 360? parallel-twins, a 270? engine in motion never has both pistons stationary, so its flywheel momentum is continuous. With less vibration than a 360? crank, and a more regular firing pattern than a 180? crank, a 270? crank results in a smoother engine. Any residual unevenness of the 270? firing interval has been claimed to deliver power to the rear tyre more effectively.

Stuart Wood, Triumph?s chief engineer, declared that a 270? crank was ideal for large-capacity parallel twins, as it “generates fewer of those irritating high frequency secondary vibrations”. Since the TRX’s demise, the 270? concept has emerged as a successful compromise for standard and cruiser motorcycles. The parallel-twin layout is having something of a revival (the latest Honda Africa Twin is a 270? parallel-twin rather than the earlier V-twin incarnation). Manufacturers are even adopting the parallel-twin format for high-performance sportbikes, such as the (discontinued) MZ 1000S and the M?tisse Mk5 yamaha wallpaper hd, harley bike, harley davidson, Motorcycle wallpapers, yamaha superbike

(Motorcycle)Harley-Davidson XR-750 Motorcycle
The Harley-Davidson XR-750 is a racing motorcycle made by Harley-Davidson since 1970, primarily for dirt track racing, but also for road racing in the XRTT variant. The XR-750 was designed in response to a 1969 change in AMA Grand National Championship rules that leveled the playing field for makes other than Harley-Davidson, allowing Japanese and British motorcycles to outperform the previously dominant Harley-Davidson KR race bike. The XR-750 went on to win the most races in the history of American Motorcyclist Association (AMA) racing.

The XR-750 is associated with the careers of racers Mark Brelsford, Cal Rayborn, and Jay Springsteen, and was the favorite motorcycle of stunt performer Evel Knievel. Knievel used the bike from December 1970 until his final jump in January 1977. An XR-750 was included in the 1998 The Art of the Motorcycle exhibition, and one of Knievel’s bikes is in the Smithsonian’s National Museum of American History America on the Move exhibit Motorcycle wallpapers#YamahaMotorcycleWallpaper #HarleyBikeWallpaper #TriumphMotorcycle #HarleyBike #Yamaha

(Motorcycle)Harley-Davidson Freewheeler Motorcycle
The Harley-Davidson Freewheeler is a motorized tricycle introduced by Harley-Davidson in August, 2014 for the 2015 model year. It is designated the FLRT.

It has a 1,690 cc displacement, air-cooled, V-twin engine with 142 N?m (105 lbf?ft) torque and a six-speed transmission with reverse.

The model is distinguished from the other Harley three-wheeler, the Tri Glide Ultra Classic, by having mini ape hanger handlebars and bobtail fenders for a low profile.

The 2017 offering sports the new 107 cubic inch Milwaukee 8 engine.

The 2019 offering sports the new 114 cubic inch Milwaukee 8 engine



#suzuki #yamaha #kawasaki #harley #superbike #ducati
Yamaha-Triumph-Harley, HarleyBike, HarleyBikeWallpaper, TriumphMotorcycle, Yamaha, YamahaMotorcycleWallpaper

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