||This article needs additional citations for verification. (December 2009)|
|Also called||Hawk GT, Bros, RC31|
|Engine||647cc Four-stroke V-Twin|
|Transmission||5 speed manual|
|Seat height||30.4 in.|
|Weight||393 lb. (dry)
412 lb. (wet)
|Fuel capacity||2.9 gal|
The Honda Hawk GT NT650 motorcycle was designated as model RC31 and was designed by Toshiaki Kishi, and was the second Honda with "Pro-Arm" suspension bike after the RC30 VFR750R. The Japanese model was named the Bros. The RC model designation is for bikes up to 750 cc, though the Honda Pacific Coast (PC800) has an engine of more than 750 cc and a model designation of RC34.
The Hawk GT was one of the first modern naked bikes along with the Yamaha SRX, which were both released several years before the Ducati Monster and eventually the Suzuki SV650. The Hawk GT is often described as a cult bike.
North American model 
The US model NT650, Hawk GT 647, RC31 was introduced in 1988 and produced through 1991. There are only very minor changes between the 1988 model year and the 1989-91 model years. In 1989, the front suspension damper rods were changed to have only two (rather than four for the 1988) holes. The front brake calipers were also changed to have screw-on covers over the mounting pins. In 1991, the oil lines were run internally through the engine, rather than externally and only a handful of 1991 model year bikes actually made it into the United States, making the 1991 the rarest vintage Hawk in America. The Canadian model was identical to the US model except for the colors.
Europe model 
A cousin to the Hawk GT, the Revere was available in Europe from 1988. The steel frame, larger fuel tank, shaft drive, main stand, and longer rear end differentiate it from the Hawk GT. The NTV650 replaced the Revere in 1993. It was a revised version of the early model with no main stand, different carburetors, tube handlebar and longer exhaust. The engine power from 60 to 50 horsepower (45 to 37 kW). The NTV650 was replaced in 1997 by the Deauville, basically an NTV650 with full bodywork and hard saddlebags - not too different in general appearance from the PC800.
Japan model 
Named the Bros in Japan, (The Model name Bros being derived from Brothers in reference to the 400cc and 650cc versions which were conceived together as brothers  ), the NT came in 400 and 650 cc (24 and 40 cu in) versions. After Honda stopped exporting the Hawk in 1992, they continued the Bros in Japan for one more year. A close ratio gear box (which drops into the Hawk) different wheels, and lower clip-ons were the major changes. A Motor Cycle News review said the Bros 400 is "heavy, underpowered and outdated, ... but surprisingly nice to ride – they’re well balanced, steer well and the engine is flexible, torquey and characterful given its 33bhp output. The Bros has a comfy, semi-upright café racer riding position."
- "Cult Bike!", American Motorcyclist, June 2007: 22
- "Origina of the Honda Bros Model name". Honda.
- "The 10 best motorcycles of 1988. (evaluation)", Cycle World 27 (10), October 1988: 27
- "1989 Honda NT650 Hawk GT; The bike that changed my life", Motorcyclist, October 2009: 15
- "Cult Bikes; A legend in your own mind?", American Motorcyclist, February 1996: 23–26
- Edwards, David (June 1988), "The view from the real world. (3 Cycle World readers try out the Honda Hawk GT)", Cycle World 27 (6): 40
- "Honda CB-1, 1989-1990", Motorcyclist, December 2000: 95
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- Girdler, Allan (July 1990), "Standard time. (motorcycles) (evaluation)", Cycle World 29 (7): 26
- Miles, Matthew (September 1991), "Going British on a budget. (customizing a Honda Hawk GT 647 motorcycle)", Cycle World 30 (9): 54
|Wikimedia Commons has media related to: Honda Hawk|
- Kelbrick, Darryl; Hine, Nick (2006), Honda BROS ( Hawk GT ) Road Test (YouTube), DrivenandRidden.com