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Bridgestone Picnica
The Bridgestone Picnica (Japanese: Burijisuton Pikunika: ブリヂストン 「ピクニカ」) line of Folding bicycle, collapsible bikes, some models featuring belt-drives, were introduced in the early 1980s and carried in the Bridgestone Cycle USA catalogs from 1985 through 1990. It weighs 29 pounds, and belt-drive models use a tooth-belt drive like auto timing belt (camshaft), timing belts and Harley-Davidson drive belts, along with a novel two-part Crankset#Chainring, chainring that increases belt tension with increasing load. In April 1987, ''Popular Mechanics'' described Bridgestone's Beltrex system as follows: "Unlike the belt-drive motorcycles, which can slide the rear wheel back to keep the belt taut, the Beltrex uses a floating pulley that's cogged to the drive gear. Tension on the pedal cranks drives the floating pulley forward, taking up belt slack and preventing tooth slippage." The Picnica is a folding bicycle, and part of the appeal of the belt drive is cleanliness. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridgestone
is a Japanese multinational manufacturing company founded in 1931 by Shojiro Ishibashi (18891976) in the city of Kurume, Fukuoka Prefecture, Fukuoka, Japan. The name Bridgestone comes from a calque translation and transposition of (), meaning 'stone bridge' in Japanese. It primarily manufactures tires, as well as golf equipment. As of 2021, Bridgestone is the largest manufacturer of tires in the world, followed by Michelin, Goodyear Tire and Rubber Company, Goodyear, Continental AG, Continental, and Pirelli. Bridgestone Group has 181 production facilities in 24 countries as of July 2018. History Origins The history of the ''Bridgestone Tire Company, Ltd.'', founded in 1931 by Shojiro Ishibashi in Japan. The first Bridgestone tire was produced on 9 April 1930, by the Japanese "Tabi" Socks Tire Division (actually made jika-tabi). One year later on 1 March 1931, the founder, Shojiro Ishibashi, made the "Tabi" Socks Tire Division independent and established the Bridgestone Tire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Folding Bicycle
A folding bicycle is designed to be compacted into a smaller, more manageable size or shape, making it easier to store or carry . When folded, the bikes can be more easily carried into buildings, on public transportation (facilitating mixed-mode commuting and bicycle commuting), and more easily stored in compact living quarters or aboard a car, boat or plane. Foldable bikes are also often used as a travel bicycle (not to be confused touring bicycle) as an alternative to take-apart bikes. Some folding bicycles are also electrically empowered. A folding bicycle or electric-assisted folding bicycle is legally defined as a bicycle (or Electric bicycle, electric bicycle, e-bikes, respectively) inall nations, having to comply with all relevant Electric bicycle laws, safety standards to be road worthy. Folding mechanisms vary, with each offering a distinct combination of folding speed, folding ease, compactness, ride, weight, durability, complexity and price. Distinguished by the com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheldon Brown (bicycle Mechanic)
Sheldon Brown (July 14, 1944 – February 4, 2008) was an American bicycle bicycle mechanic, mechanic, technical expert and author. He contributed to print and online sources related to bicycling and bicycle mechanics, in particular the web site ''Sheldon Brown's Bicycle Technical Info''. His knowledge of bicycles was described as "encyclopaedic" by ''The Times'' of London. Background Brown was the parts manager, webmaster and technical consultant of Harris Cyclery, a local bike shop, bike shop in West Newton, Massachusetts, as well as an enthusiast of vintage and classic bicycles in addition to cycling in general. Brown maintained ''Sheldon Brown's Bicycle Technical Info'', a web site highlighting a broad range of cycling subjects ranging from how to fix a bicycle flat tire to details on Raleigh Bicycle Company, Raleigh and English three-speed bicycles, Sturmey-Archer hubs, tandem bicycle, tandems, and fixed-gear bicycles. He repaired cameras and was an Amateur Photographer, ama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timing Belt (camshaft)
In a piston engine, either a timing belt (also called a ''cambelt'') or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the crankshaft and the camshaft. This synchronisation ensures that the engine's valves open and close at the correct times in relation to the position of the pistons. Design In most piston engines, the camshaft(s) are mechanically connected to the crankshaft. The crankshaft drives the camshaft (via a timing belt, timing chain or gears), which in turn actuates the intake and exhaust valves. These valves allow the engine to inhale air (or an air/fuel mixture) and exhale the exhaust gasses. The most common devices to transfer the drive are toothed rubber belts, metal timing chains or a set of gears. The teeth of the belt/chain/gears mesh with both the crankshaft and camshaft(s), thereby synchronising their motion. In many older overhead valve engines, the camshaft is located in the block near the crankshaft, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harley-Davidson
Harley-Davidson, Inc. (H-D, or simply Harley) is an American motorcycle manufacturer headquartered in Milwaukee, Wisconsin. Founded in 1903, it is one of two major American motorcycle manufacturers to survive the Great Depression along with its historical rival, Indian Motorcycles.Automotive – RSS Feed . ''Popular Mechanics''. Retrieved July 7, 2011. The company has survived numerous ownership arrangements, subsidiary arrangements, periods of poor economic health and product quality, and intense global competition to become 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. Harley-Davidson is noted for a style of customization that gave rise to the Chopper (moto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankset
The crankset (in the US) or chainset (in the UK) is the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain or belt, which in turn drives the rear wheel. It consists of one or more sprockets, also called ''chainrings'' or ''chainwheels'' attached to the '' cranks'', ''arms'', or ''crankarms'' to which the pedals attach. It is connected to the rider by the pedals, to the bicycle frame by the bottom bracket, and to the rear sprocket, cassette or freewheel via the chain. Parts Cranks The two ''cranks'', one on each side and usually mounted 180° apart, connect the bottom bracket axle to the pedals. Lengths Bicycle cranks can vary in length to accommodate different sized riders and different types of cycling. Crank length is measured from the center of the pedal spindle to the center of the bottom bracket spindle or axle. The larger bicycle component manufacturers typically offe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1990 Bridgestone Picnica Folding Bike
Year 199 ( CXCIX) was a common year starting on Monday of the Julian calendar. At the time, it was sometimes known as year 952 ''Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, as the 15th pope. Births Valerian Roman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Folding Bicycle
A folding bicycle is designed to be compacted into a smaller, more manageable size or shape, making it easier to store or carry . When folded, the bikes can be more easily carried into buildings, on public transportation (facilitating mixed-mode commuting and bicycle commuting), and more easily stored in compact living quarters or aboard a car, boat or plane. Foldable bikes are also often used as a travel bicycle (not to be confused touring bicycle) as an alternative to take-apart bikes. Some folding bicycles are also electrically empowered. A folding bicycle or electric-assisted folding bicycle is legally defined as a bicycle (or Electric bicycle, electric bicycle, e-bikes, respectively) inall nations, having to comply with all relevant Electric bicycle laws, safety standards to be road worthy. Folding mechanisms vary, with each offering a distinct combination of folding speed, folding ease, compactness, ride, weight, durability, complexity and price. Distinguished by the com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Wheel Bicycle
A small-wheel bicycle, sometimes called a mini velo or mini-velo, is an adult bicycle with a reasonable sized frame and relatively small wheels, usually of ETRTO 406 mm (20") or less nominal diameter, which is smaller than the common 622 mm (700c) road bicycle wheel size or 622 mm, 584 mm or 559 mm (29, 27.5 or 26") gravel and mountain bike wheel sizes common on most full-sized adult bikes. They can be folding or non-folding. While many folding bicycles are small-wheel bicycles, not all small-wheel bicycles can fold. Some small-wheel bicycles neither fold nor separate, such as the Moulton, which comes in both fixed-frame and separable-frame versions. While BMX bikes also have ETRTO 406 mm ("20 inch") wheels, they are not normally categorised as "small-wheel bikes". History An early proponent of small-wheeled adult bicycles was Paul de Vivie, better known by his pen name "Vélocio". His approach was to use a balloon-width tire of about 57 mm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridgestone Picnica Bicycle With Belt Drive
is a Japanese multinational manufacturing company founded in 1931 by Shojiro Ishibashi (18891976) in the city of Kurume, Fukuoka, Japan. The name Bridgestone comes from a calque translation and transposition of (), meaning 'stone bridge' in Japanese. It primarily manufactures tires, as well as golf equipment. As of 2021, Bridgestone is the largest manufacturer of tires in the world, followed by Michelin, Goodyear, Continental, and Pirelli. Bridgestone Group has 181 production facilities in 24 countries as of July 2018. History Origins The history of the ''Bridgestone Tire Company, Ltd.'', founded in 1931 by Shojiro Ishibashi in Japan. The first Bridgestone tire was produced on 9 April 1930, by the Japanese "Tabi" Socks Tire Division (actually made jika-tabi). One year later on 1 March 1931, the founder, Shojiro Ishibashi, made the "Tabi" Socks Tire Division independent and established the Bridgestone Tire Co., Ltd. in the city of Kurume, Fukuoka Prefecture. "Bridgestone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
