Yamaha FZ8 and FAZER8 Motorcycle background – cool harley bike wallpapers hd

Cycle World reported a wet weight of 215 kg (473 lb) and an average fuel economy of 5.6 L/100 km; 50 mpg-imp (42 mpg-US), and 97 to 0 km/h (60 to 0 mph) braking in 42 m (137 ft). They saw acceleration of 0 to 97 km/h (0 to 60 mph) in 3.3 seconds and 0.00 to 0.40 km (0 to 1/4 mi) in 11.31 seconds at 192.64 km/h (119.70 mph), and measured the FZ8’s top speed at 230 km/h (140 mph) They dynamometer tested the rear wheel horsepower at 68.3 kW (91.6 hp) @ 9,900 rpm and torque at 71.0 J (52.4 ft?lb) @ 8,100 rpm.

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(Motorcycle)Yamaha YZF750 Motorcycle
The Yamaha YZF750 is a motorcycle that was produced from 1993 to 1998 in two forms, the standard R and the homologation model single seat SP. The 750R was the only version sold in the US. Mechanically the later SP differed from the R in the following areas: adjustable swingarm pivot position, 39 mm Keihin FCR flatslide carburetors, a lower screen, a removable rear subframe and a single seat. The primary drive, gear box and final drive ratios are different on the SP. The rear suspension unit is different and vastly improved for the earlier SP however the R from 1996 also had the Ohlins rear shock. The SP was the homologation model of the Yamaha YZF750 for the World Superbike Championship before the rules changed to allow 1000cc bikes. The bike won the Suzuka 8 Hours endurance race four times between 1987 and 1996 Motorcycle wallpapers#YamahaBike #YamahaMotorbike #Yamaha #TriumphSuperbike #Yamaha

(Motorcycle)Harley-Davidson KR Motorcycle
Development of the 742 cc (45.3 cu in) Model K street motorcycle began in 1950 in response to increased competition from UK brands Triumph, Norton, and BSA entering the US market in greater numbers due to post-World War II reductions in import duties, and the UK’s need to boost exports. Technology found on the European imports, including a hydraulic fork front suspension, a rear swingarm, four-speed transmission, unit construction, and a hand, rather than foot, clutch control, were used on the new K and KR. Alongside the Model K street bike, the KR racer was developed to compete in Class C.

Motorcycling writer Kevin Cameron characterized Harley-Davidson as “outside the mainstream of engine development in general, to say nothing of the racing mainstream,” noting that, for example, their first use of overhead valves (OHV) on a production motorcycle was one year after the last time an AMA TT race was won by an OHV engine, overhead camshaft (OHC) becoming the only competitive technology in TT racing thereafter. American brands Harley-Davidson and Indian favored flathead engines because Americans rode far longer distances than Europeans, over much rougher roads, with lower octane fuel, and had greater need for low-RPM torque than the greater power offered at higher engine speed of OHV engines. Additionally, while the low-priced Ford Model T car dominated the US motor vehicle market ever since World War I and kept motorcycling in a recreational niche market, in Europe, motorcycles were still mainstream, mass-market transportation, with sales and profits that justified ongoing technological investment. That changed after World War II, with lighter, faster and more utilitarian British imports pouring into the US as the UK was desperate for foreign currency to repay war debts, Harley-Davidson and Indian were forced to respond quickly to a newly-competitive and fast-changing market

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