Harley-Davidson Baja 100

Last updated
Harley-Davidson Baja 100
BbtV Bajas Done.png
Two 1970 Baja 100s
Manufacturer Aermacchi
Production1969–1972 (model years 1970–1973)
Assembly Varese, Italy
Class Off-road
Engine 98 cc (5.98 cu in) 2-stroke single [1]
Bore / stroke 50 mm × 50 mm (1.97 in × 1.97 in) [1]
Compression ratio 9.5:1 [1]
Power 12.6 bhp (9.4 kW) @ 8,000 rpm [2]
Transmission 5 speed [1]
Tires Metzeler front: 3.00 × 21, rear: 3.50 × 18
Wheelbase 52 in (1,300 mm) [1]
DimensionsL: 78.5 in (1,990 mm) [1]
W: 34 in (860 mm) [1]
Weight185 lb (84 kg) [2]  (dry)
Fuel capacity2.5 US gal (9.5 L; 2.1 imp gal), including 1 US qt (0.95 L) reserve. [1]

The Harley-Davidson Baja 100 was a small displacement off-road motorcycle made for Harley-Davidson in Italy by Aermacchi, which was 50% owned by Harley-Davidson at the time. It was one of Harley-Davidson's attempts to enter the small displacement off-road motorcycle market. It was built in Aermacchi's Varese, Italy factory.

Contents

It had a 98 cc (6.0 cu in) two-stroke, single cylinder engine with five speed transmission, derived from the current two-stroke production, mostly Aletta and Aletta d'Oro off the shelf parts by reducing bore from 56 mm to 50 mm.

The only purpose-made part was the frame to accommodate for the front holder for the cylinder head and the air filter box.

Production runs

The first production run started in September 1969 and ended just before August, traditionally the time of the year when factories were closed for holidays and consequently a new model year introduced.

Production

Production runs of 1973 are not known even if some MY 74 models seem to exist but this means that there have been no changes after MY73.

As a rule frame numbers (which are repeated on the engine) start with 8B on the MSR (Competition Model) and 8C for the "street model" which had lights, muffler and a high front fender. But for some early "street models" the MSR frame numbering may apply.

A major overhaul took place end of 1972 when the engine was fitted with a new aluminum cylinder and carburetor, and gear shift on the right side of the engine. There were other minor differences such as the rear fork or the missing vent on the tank.

The Baja had a racing history and won the Baja 1000 in 1971 with the official Harley-Davidson team in its class. In that race Harley entered some 14 Baja models, of which 8 finished in the top 10, including the race winner.

See also

Related Research Articles

<span class="mw-page-title-main">Harley-Davidson</span> American motorcycle manufacturer

Harley-Davidson, Inc. is an American motorcycle manufacturer headquartered in Milwaukee, Wisconsin, United States. Founded in 1903, it is one of two major American motorcycle manufacturers to survive the Great Depression along with its historical rival, Indian Motorcycles. The company has survived numerous ownership arrangements, subsidiary arrangements, periods of poor economic health and product quality, and intense global competition to become one of the world's largest motorcycle manufacturers and an iconic brand widely known for its loyal following. There are owner clubs and events worldwide, as well as a company-sponsored, brand-focused museum.

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

Aermacchi was an Italian aircraft manufacturer. Formerly known as Aeronautica Macchi, the company was founded in 1912 by Giulio Macchi at Varese in north-western Lombardy as Nieuport-Macchi, to build Nieuport monoplanes under licence for the Italian military. With a factory located on the shores of Lake Varese, the firm originally manufactured a series of Nieuport designs, as well as seaplanes.

<span class="mw-page-title-main">Indian Motocycle Manufacturing Company</span> Motorcycle marque

Indian Motorcycle is an American brand of motorcycles owned and produced by American automotive manufacturer Polaris Inc.

<span class="mw-page-title-main">Buell Motorcycle Company</span> American motorcycle manufacturer

Buell Motorcycles is an American motorcycle manufacturer based in Grand Rapids, Michigan, United States. It was founded in 1983 by ex-Harley-Davidson engineer Erik Buell. Harley-Davidson acquired 49 percent of Buell in 1993, and Buell became a wholly owned subsidiary of Harley-Davidson by 2003. On November 17, 2006, Buell announced that it had produced and shipped its 100,000th motorcycle.

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">MV Agusta</span> Italian motorcycle manufacturer and racing team

MV Agusta is a high end motorcycle manufacturer founded by Count Domenico Agusta on 19 January 1945 as one of the branches of the Agusta aircraft company near Milan in Cascina Costa, Italy. The abbreviation MV stands for Meccanica (mechanics) Verghera, the hamlet where the first MVs were made. The modern headquarters and main production facilities are located in Varese, Italy on the shore of Lake Varese.

Cagiva is an Italian motorcycle manufacturer. It was founded in 1950 by Giovanni Castiglioni in Varese, originally producing small metal components. Giovanni's sons, Claudio and Gianfranco Castiglioni, went into the motorcycle industry in 1978. The name is a portmanteau derived from the founder's name 'Giovanni Castiglioni' and the founding location, i.e. CAstiglioni GIovanni VArese.

<span class="mw-page-title-main">Motorcycle engine</span> Engine that powers a motorcycle

A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.

<span class="mw-page-title-main">Harley-Davidson Sportster</span> Type of motorcycle

The Harley-Davidson Sportster is a line of motorcycles produced continuously since 1957 by Harley-Davidson. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". In 1952, the predecessors to the Sportster, the Model K Sport and Sport Solo motorcycles, were introduced. These models K, KK, KH, and KHK of 1952 to 1956 had a sidevalve engine, whereas the later XL Sportster models use an overhead valve engine. The first Sportster in 1957 had many of the same details of the KH including the frame, fenders, large gas tank and front suspension.

<span class="mw-page-title-main">Kawasaki police motorcycles</span>

Kawasaki police motorcycles have been produced in four series:

<span class="mw-page-title-main">Ducati Apollo</span> Type of motorcycle

The 1964 Ducati Berliner 1260 Apollo was a prototype 1,257 cc (76.7 cu in) V4 engine motorcycle producing 100 bhp (75 kW) and capable of over 120 mph (190 km/h). It was never put into production, but did influence other production Ducatis that followed. Both Ducati and their United States distributor, Berliner Motor Corporation, were experiencing declining sales of existing small-capacity single-cylinder models, and sought to create a bike to compete with Harley-Davidson. Berliner Motor was keen to have a model that could win lucrative police motorcycle supply contracts, and that could also sell as a civilian touring bike.

<span class="mw-page-title-main">Douglas (motorcycles)</span> British motorcycle manufacturer

Douglas was a British motorcycle manufacturer from 1907 to 1957 based in Kingswood, Bristol, owned by the Douglas family, and especially known for its horizontally opposed twin cylinder engined bikes and as manufacturers of speedway machines. The company also built a range of cars between 1913 and 1922.

<span class="mw-page-title-main">Walter Villa</span> Italian motorcycle racer

Walter Villa was an Italian four-time Grand Prix motorcycle road racing world champion. He was known for his quiet, unassuming nature off the bike who became a ruthless competitor once the races began.

<span class="mw-page-title-main">Harley-Davidson Hummer</span> Type of motorcycle

The Hummer was a motorcycle model manufactured by Harley-Davidson from 1955 to 1959. However, the name "Hummer" is now incorrectly used generically to refer to all American-made single-cylinder two-stroke Harley-Davidson motorcycles manufactured from 1948 to 1966. These motorcycles were based on the DKW RT125, the drawings for which were taken from Germany as war reparations after World War II. The RT125 drawings were also given to the United Kingdom and the Soviet Union as war reparations, resulting in the BSA Bantam and the MMZ M-1A Moskva, later known as the Minsk.

<span class="mw-page-title-main">Harley-Davidson VRSC</span> Harley-Davidson cruiser motorcycle

The Harley-Davidson VRSC, or V-Rod, is a line of V-twin cruiser motorcycles made by Harley-Davidson from 1999 until 2017. They are often called muscle bikes for their relatively high power output. The V-Rods are the first street motorcycles made by Harley-Davidson with overhead camshafts and liquid cooling.

<span class="mw-page-title-main">Featherbed frame</span> Motorcycle frame

The featherbed frame was a motorcycle frame invented by the McCandless brothers and offered to the British Norton motorcycle company to improve the performance of their racing motorcycles in 1950. It was considered revolutionary at the time, and the best handling frame that a racer could have. Later adopted for Norton production motorcycles, it was also widely used by builders of custom hybrids such as the Triton, becoming legendary and remaining influential to this day.

<span class="mw-page-title-main">Harley-Davidson XR-750</span> Type of motorcycle

The Harley-Davidson XR-750 is a racing motorcycle made by Harley-Davidson since 1970, primarily for dirt track racing, but also for road racing in the XRTT variant. The XR-750 was designed in response to a 1969 change in AMA Grand National Championship rules that leveled the playing field for makes other than Harley-Davidson, allowing Japanese and British motorcycles to outperform the previously dominant Harley-Davidson KR race bike. The XR-750 went on to win the most races in the history of American Motorcyclist Association (AMA) racing.

<span class="mw-page-title-main">American Flat Track</span>

American Flat Track is an American motorcycle racing series. The racing series, founded and sanctioned by the American Motorcyclist Association (AMA) in 1954, originally encompassed five distinct forms of competitions including mile dirt track races, half-mile, short-track, TT steeplechase and road races. The championship was the premier motorcycle racing series in the United States from the 1950s up until the late 1970s.

<span class="mw-page-title-main">Harley-Davidson Fat Boy</span> V-twin softail cruiser motorcycle with solid-cast disc wheels

The Harley-Davidson Fat Boy, is a V-twin softail cruiser motorcycle with solid-cast disc wheels. Designed by Willie G. Davidson and Louie Netz, Harley-Davidson built a prototype Fat Boy in Milwaukee for the Daytona Bike Week rally at Daytona Beach in 1988 and 1989. Fat Boys produced from 1990-2017 are coded FLSTF, and FLFB from 2018.

<span class="mw-page-title-main">Flathead motorcycles</span>

Flathead motorcycles are a type of bike that was a standard for pre-war motorcycles, in particular US V-twins such as Harley-Davidson and Indian, some British singles, BMW flat twins and Russian copies thereof.

References

Works cited