• Motorcycle's History

    Wooden motorized bicycle was named Reitwagen (riding car) and is the world's first motorcycle. Maybach try Reitwagen distance of 3 miles along the River Neckar, from Cannstatt to Untertürkheim, with a speed of 12 kilometers per hour ...

    read-more
  • Ariel

    Ariel is a brand of bicycle, motorcycle, and automobile-based British Bournbrook, Brimingham, England. In 1902, Components Ltd. has 2 divisions Ariel: Ariel Cycle Company and Ariel Motor Company. Ariel Cycle Company of concentration on the production of motorcycles, three wheel motorcycle, and Quadracircle (four-wheeled motorcycle) while the Ariel Motor Company to concentrate on automobile production. Automobile production was moved to Coventry in 1911. The company name is then used again in 1999 to Ariel ltd as a manufacturer of sports cars....

    read-more
  • BSA (Birmingham Small Arms)

    BSA was founded in 1863 and began motorcycle division was established in 1880. The first motorized bike was launched in 1905 with a small Minerva engine attached to it. BSA has a good reputation for a reliable bike and successfully grow with the introduction of S27 (also known as a model Sloper). It was produced for 10 years and is available in 350cc, 500cc and 595cc engines. Throughout the production of slightly modified so that the original design became popular...

    read-more
  • Excelsior

    Excelsior 7-C made ​​in 1913 is one of the motorcycle models from Schwinn Excelsior brand owners. Excelsior is one of the biggest names in the early days of the motor industry, and its popularity to compete with Indian and Harley-Davidson...

    read-more
Previous Next

Zenith Gradua (1912)

Posted by Welcome Bikkers! On - - 0 komentar

Make     : Zenith

Type      : Gradua

Year       : 1912

CC         : 770

Cylinder  : 2

Description

Zeith machines were manufactured from 1904 till 1950, in a variety of factories in or around London. From the early days proprietary engines were used, such as Fafnir, Green-Precision, JAP, Bradshaw and Villiers. Tle latter engines were used in most models from the thirties. In pre WW1 days Zenith machines gained many successes; driving force was chief Engineer Freddy Barnes, who was responsible for the famous ?Gradua? gear. The mechanics of the Gradua gear were a variable engine pulley worked by a handle, with simultaneous correction of the belt length made by sliding the rear wheel backwards or forwards in the fork slots. Its advantage showed itself most effectively in speed hill climbs. The Zenith rider could change during the journey up while the other competitors had to make do with a single choice of gear ratio. Rival riders and manufacturers thought that this was an unfair advantage so many leading clubs barred Gradua gear Zeniths from their hill climbs. Zenith was quick to recognize the publicity value and took the word ?barred? as their trademark.








Categories:

Leave a Reply