Honda NSR50

Last updated
The 2004 Honda NSR50R on a Florida race track with a 13-year-old rider. The NSR50 is often used as an entry level racing motorcycle for young riders entering the sport, but also enjoys ridership among adult riders. Honda NSR50R on track.jpg
The 2004 Honda NSR50R on a Florida race track with a 13-year-old rider. The NSR50 is often used as an entry level racing motorcycle for young riders entering the sport, but also enjoys ridership among adult riders.

The A-AC10 Honda NSR50 is a motorcycle produced by Honda Motor Company. It was offered in a street legal format in several countries including Japan, France, Spain and more. It was also offered as a off-road use race bike variant in both Japan and the USA. The USA received it as a one year only 2004 model designated as an NSR50R. In Japan it was offered in both 2004 and 2009 as the NSR Mini.

Contents

The NSR50 was released on May 29, 1987. [1] Important factors in its development were Suzuki Motor Co, Ltd’s release of their GAG, a 50cc full fairing mini racer replica, as well as Yamaha Motor releasing their own version, the YSR50. Both quickly enjoyed popularity in mini-bike and circuit racing. Honda, considering both models advantages and disadvantages released their own version with a water-cooled engine, as well as dual hydraulic disc brakes, which neither competing model featured.

It is one of the most commonly raced motorcycles in minibike club road racing in the USA, and enjoys similar popularity world-wide. It typically falls into class with other two-stroke 50cc road bikes such as the Yamaha YSR50, but is also commonly classed with up to 110cc four-stroke bikes.

The NSR50’s engine (designated as AC08E), is a horizontal, single cylinder, water-cooled, two-stroke engine that uses piston port injection. It has an inner diameter x stroke = 39.0x41.4 (mm), with a total internal dimension of 49CC. The maximum output is 7.2ps/10,000 rpm, and the maximum torque output 0.65kgf m/7,500rpm [2] It has a total fuel capacity of 7.5L, with a 1.1L Oil tank, utilizing a vacuum powered oil injection pump on road-faring models [3] The engine is kick-start, or bump-start only depending on the model. It uses a wet-clutch, cross-mesh close ratio Six-Speed transmission.

It utilizes a steel, twin tube diamond shaped frame, with twin telescopic forks up front with an inner diameter of 30mm, as well as a steel swing arm in the rear using a mono-shock design. The early models of bikes have a caster angle 25°00, but it was changed to 24°50 in 1995. It is important to note the NSR50R produced for the USA for 2004 by HRC features both 30mm taller forks and head stalk. The brakes are hydraulic single discs in both the front and rear, the front using a 2-pot caliper, with a single-pot in the rear. It wears a tire size of 100/90-12 48J (front) and 120/80-12 54J (back) on square 10x4jj aluminum wheels.

See also

Related Research Articles

Yamaha Motor Co., Ltd. is a Japanese multinational manufacturer of motorcycles, marine products such as boats and outboard motors, and other motorized products. The company was established in 1955 upon separation from Yamaha Corporation, and is headquartered in Iwata, Shizuoka, Japan. The company conducts development, production and marketing operations through 109 consolidated subsidiaries as of 2012.

The Honda XR series is a range of four-stroke off-road motorcycles that were designed in Japan but assembled all over the world.

<span class="mw-page-title-main">Honda Shadow</span> Honda cruiser motorcycle

The Honda Shadow refers to a family of cruiser-type motorcycles made by Honda since 1983. The Shadow line features motorcycles with a liquid-cooled 45 or 52-degree V-twin engine ranging from 125 to 1,100 cc engine displacement. The 250 cc Honda Rebel is associated with the Shadow line in certain markets.

<span class="mw-page-title-main">Yamaha RD350</span> Type of motorcycle

The RD350 is a two-stroke motorcycle produced by Yamaha from 1973 to 1975. It evolved directly from the piston port, front drum-braked, five-speed Yamaha 350 cc "R5".

<span class="mw-page-title-main">Sport bike</span> Motorcycles designed for performance

A sport bike is a motorcycle designed and optimized for speed, acceleration, braking, and cornering on asphalt concrete race tracks and roads. They are mainly designed for performance at the expense of comfort, fuel economy, and storage in comparison with other motorcycles.

<span class="mw-page-title-main">Honda CBR600RR</span> Sport bike

The Honda CBR600RR is a 599 cc (36.6 cu in) sport bike made by Honda since 2003, part of the CBR series. The CBR600RR was marketed as Honda's top-of-the-line middleweight sport bike, succeeding the 2002 Supersport World Champion 2001–2006 CBR600F4i, which was then repositioned as the tamer, more street-oriented sport bike behind the technically more advanced and uncompromising race-replica CBR600RR. It carried the Supersport World Championship winning streak into 2003, and on through 2008, and won in 2010 and 2014.

<span class="mw-page-title-main">Suzuki GSX-R750</span> Sports motorcycle

The Suzuki GSX-R750 is a sports motorcycle made by Suzuki since 1985. It was introduced at the Cologne Motorcycle Show in October 1984 as a motorcycle of the GSX-R series.

<span class="mw-page-title-main">Yamaha FZR1000</span> Motorcycle model produced by Yamaha

The Yamaha FZR1000 is a motorcycle produced by Yamaha from 1987 to 1995. Classed as a sports motorcycle.

<span class="mw-page-title-main">Yamaha SR400 & SR500</span> Type of motorcycle

The Yamaha SR400 (1978–2021) and SR500 (1978–1999) are single-cylinder, air-cooled, two-passenger motorcycles manufactured in Japan by Yamaha Motor Company as a street version of the Yamaha XT500, with a standard riding posture and styling resembling the Universal Japanese Motorcycles of the 1970s. The two models differ by their engines: the SR400 engine has a lower displacement, achieved with a different crankshaft and shorter piston stroke and both models feature only kickstarting, i.e., no electric starter.

<span class="mw-page-title-main">Yamaha YZ250</span> Type of motorcycle

The Yamaha YZ250 is a two-stroke motocross race bike made by Yamaha. The model was launched in 1974, and has been regularly updated and is still in production with new releases every year.

<span class="mw-page-title-main">Honda CR125M</span>

The Honda CR125M Elsinore is a motorcycle designed and manufactured by Honda and released in late 1973. Modeled after the first Elsinore, the Honda CR250M, the 124cc version sold for $749 at its debut. A CR125M ridden by Marty Smith won the 1974 AMA National Motocross championship, spurring the Elsinore's popularity. The September 1973 issue of Dirt Bike argued that the 125 Honda Elsinore was the only off-road bike on the market at the time that offered both speed and reliability. Other Japanese 125cc motocross bikes available at the time would have needed major suspension, motor, and chassis upgrades to be used for motocross racing.

<span class="mw-page-title-main">Yamaha YZ450F</span> Type of motorcycle

The Yamaha YZ450F is a four-stroke racing motocross bike built by Yamaha Motor Corporation. It was the successor to the previous YZ426F which was discontinued in 2003. It is credited by Cycle World and Dirt Rider magazines as the bike that started the four-stroke dirt bike revolution. The 2006 YZ250F and YZ450F were the first production motorcycles equipped with titanium suspension springs.

<span class="mw-page-title-main">Yamaha Zuma</span> Type of motorcycle

The Yamaha Zuma is an air-cooled 49 cc two-stroke scooter made by Yamaha Motor Company. It is also marketed as the Yamaha BWs, and the MBK Booster.

<span class="mw-page-title-main">Suzuki TU250</span> Motorcycle

The Suzuki TU250— marketed also as the TU250X, ST250 and ST250 E-Type — is a single-cylinder, air-cooled lightweight street bike manufactured by Suzuki across two generations from 1994-2019.

<span class="mw-page-title-main">Yamaha Zuma 125</span> Type of motorcycle

The Yamaha Zuma 125 is a scooter introduced by Yamaha Motor Company in September 2008 and updated in 2016. It is a 125 cc version of its smaller 49cc cousin, the Zuma. Outside the United States it is known as the Yamaha BW's 125.

<span class="mw-page-title-main">Honda NSR250R</span> Type of motorcycle

The Honda NSR250R is a street-legal road-orientated 249cc two stroke sport bike produced by Honda Motor Co., Ltd between 1987 and 1999.

<span class="mw-page-title-main">Yamaha TMAX</span> Series of maxi-scooters

The Yamaha TMAX series of maxi-scooters has been manufactured by Yamaha Motor Company for the European market since its debut at July 2000 press events in Naples, Italy and Iwata, Japan, combining motorcycle performance with the convenience and flexibility for commuting of a scooter.

<span class="mw-page-title-main">Kawasaki KR-1/KR-1S</span>

The Kawasaki KR-1 and KR-1S are road-orientated 249 cc (15.2 cu in) two-stroke sports bikes introduced between 1988 and 1992 by Kawasaki Heavy Industries.

<span class="mw-page-title-main">KTM 300</span> Series of off-road motorcycles made by KTM

The KTM 300 is a series of 2-stroke enduro / off-road motorcycles made by KTM. They are the Penton-inspired 1984 300 GS, the 300 DMX, the dirt only 300 MXC, European road legal 300 EXC and the US 300 XC (close-ratio), 300 XC-W and 300 SX (Motocross) versions. The KTM 300 is designed for difficult off-road conditions. The 300 EXC and the 300 XC-W have a small headlight, speedometer, tail-light and somewhat softer linkless PDS suspension. Starting in 2008 all 300's came with electric start. Since the early 2000s KTM has been offering the XC-W model in a special "Six-Days" or "ERZBERGRODEO" limited edition.

<span class="mw-page-title-main">Bridgestone (motorcycle)</span> Brand of motorcycles produced by the Japanese tire manufacturer between 1952 and 1970

Bridgestone motorcycles were a division of the Bridgestone Tire Co. of Kyōbashi, Tokyo, Japan that produced mopeds and motorcycles from 1952 to 1970. Initially producing power assisted bicycles, the division moved on to producing mopeds and then motorcycles. The motorcycles were technologically advanced and powered by two-stroke engines. The high technical specification resulted in the machines being more expensive compared to other manufacturers models. Production was stopped in 1970 to protect the supply of tyres to other manufacturers.

References

  1. "ホンダ・NSR", Wikipedia (in Japanese), 2022-08-16, retrieved 2023-04-10
  2. "本格装備とデザインのミニサイズスポーツバイク「ホンダ・NSR80」を発売". www.honda.co.jp. Retrieved 2023-04-10.
  3. ""Nチビ"って何? ホンダNSR500を3/4サイズで再現したNSR50/80。|市販全モデル掲載|Motor-Fan Bikes[モータファンバイクス]". car.motor-fan.jp. Retrieved 2023-04-10.