Honda NR 750
About the Honda NR 750
In 1979, 500cc motorcycle racing was dominated by 2-stroke machines.
Honda introduced the NR500 4-stroke racer that year, in an attempt to
break this 2-stroke hold on 500cc Grand Prix Championships. Honda's
bike had an epoch-making aluminum monocoque frame, 16-inch wheels, and
was powered by a 32-valve, V-4 cylinder engine using oval-pistons. Each
cylinder had 8-valves and two spark-plugs that enabled it to turn at an
astonishing 20,000rpm, and producing horsepower equivalent to a
2-stroke engine. The NR500 failed as a G.P. racing machine, but Honda
continued to develop it because of its performance potential. After
years of trial and error, the NR reappeared on the racing scene in 1987
as a 750cc endurance racer. This proved that an oval-piston concept was
workable. During the 1991 Geneva and Tokyo Motor Shows, Honda
introduced a production version of this hi-tech motorcycle which they
simply called "NR." The sophisticated power plant of the 750cc "NR"
uses fuel injection and is capable of producing 130 HP at a realistic
14,000rpm. This phenomenal engine is mounted on an exceptionally rigid
all-aluminum twin-spar frame which rides on 16 inch front & 17
inch rear cast magnesium wheels, like those seen on racing machines.
The cowling is fabricated from carbon-composite for durability and
weight savings. The Honda NR is a true "dream-bike" that exceeds
performance standards of today's motorcycle technology, taking a big
leap into the future.
|