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Sunday, August 2, 2015

The world's first turbo-diesel motorcycles

Most people do not dream of their bike running on a diesel heart especially after the abysmal failure of the Royal Enfield Taurus bike which was launched in India a few years back. Diesel engines are thought of as high maintenance, oil dripping and noisy beasts of engines. But, in the world of engines today, diesel engines have proved to be more cleaner, powerful and fuel efficient than their petrol counterparts.
Neander Turbo-Diesel motorcycle. (Picture from: http://bit.ly/1h4lI2M)
Today as we know, Germany’s Neander Motors has been producing a cruiser bike running on a 1,340 cc turbocharged parallel-twin diesel engine which designed to dramatically lower vibration. The engine has given hope to the bike world and is claiming as the world’s first turbo-diesel production motorcycle. The very first production unit had been displayed at the international motorcycle show "Mondial du Deux-Roue" in Paris 2007.
Front three quarter of Neander Turbo-Diesel motorcycle. (Picture from: http://bit.ly/1h4lI2M)
The engine displaces 1,340 cc with an output of 112 hp at 4,200 rpm and 214 N.m of torque at 2,600 rpm. Acceleration is 0-60 in 4.5 seconds with a top speed of approximately 220 kph or 140 mph. The engine is an air and oil cooled vertical twin cylinder with 4 valves per cylinder, 2 overhead cams and common rail injection. It is turbocharged with an intercooler. The transmission is a 6 speed with belt final drive.
The engine displaces 1,340 cc with an output of 112 hp at 4,200 rpm and 214 N.m of torque at 2,600 rpm. (Picture from: http://bit.ly/1h4lI2M)
The most unique feature of the engine are the twin counter rotating crankshafts with 2 connecting rods per piston, which, according to Neander, virtually eliminates the vibration you would expect, not only because it's a diesel but also from the vertical twin configuration. The pistons both move up and down in unison. Technically, it's extremely interesting and seems like it should do the job. We'll have to wait for an independent road test to verify how well it actually works.
Left side view of Neander Turbo-Diesel motorcycle. (Picture from: http://bit.ly/1h4lI2M)
The motorcycle itself has a 75 inch wheelbase and is 98 inches in overall length. Rake is a leisurely 56 degrees. Seat height is only 26 inches making it easy to comfortably plant your feet and weight is 650 pounds. Range with 3.7 gallons of diesel fuel is approximately 186 miles which yields about 50 mpg (4.5 l/100 km), perhaps a bit less than you would expect until you consider the power and weight of the motorcycle and considering the engine is of their own design.
Rear side view of Neander Turbo-Diesel motorcycle. (Picture from: http://bit.ly/1h4lI2M)
The other unique design feature are the twin 41 mm front fork tubes, that is, 2 tubes on each side. I'm not sure whether they all perform the same function or if suspension duties are somehow divided between the pairs but, in any case, it gives the Neander a very unique look.
Will this be the first of many turbo diesel motorcycles to begin production with other companies joining in or one of only a few? Time will tell us. *** [EKA | FROM VRIOUS SOURCES | NEANDER MOTORS | THE KNEESLIDERS]
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