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Fork: a mechanical assembly that integrates a bicycle's frame to its front wheel and handlebars, allowing steering by virtue of its steerer tube; Fork crown: the point at which the two blades of the fork meet below the steerer tube. Fork end: paired slots on a fork or frame at which the axle of the wheel is attached. See also Dropout
Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.
One problem with roller chains is the variation in speed, or surging, caused by the acceleration and deceleration of the chain as it goes around the sprocket link by link. It starts as soon as the pitch line of the chain contacts the first tooth of the sprocket. This contact occurs at a point below the pitch circle of the sprocket.
16 tooth sprocket. Do = Sprocket diameter. Dp = Pitch diameter A sprocket and roller chain. A sprocket, [1] sprocket-wheel [2] or chainwheel is a profiled wheel with teeth that mesh with a chain, rack or other perforated or indented material. [3] [4] The name 'sprocket' applies generally to any wheel upon which radial projections engage a chain ...
The Moskvitch 401 (full designation: Moskvitch 401-420) was introduced in 1954, an improved variant of the 400-420. [11] It weighs 885 kg (1,951 lb). [ 11 ] and was powered by an 1,074 cc (65.5 cu in) sidevalve inline four engine, uprated from 23 hp (17 kW ; 23 PS ) to 26 hp (19 kW ; 26 PS ), [ 6 ] thanks to a higher compression ratio, of 6.2:1 ...
It consists of one or more sprockets, also called chainrings [1] [2] [3] or chainwheels [3] attached to the cranks, arms, [4] or crankarms [5] 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.
Louis Anthony Rossmann (born November 19, 1988) [3] [4] is an American independent electronics technician, YouTuber, and right to repair activist. He is the owner and operator of Rossmann Repair Group in Austin, Texas (formerly New York City), a computer repair shop established in 2007 which specializes in logic board-level repair of MacBooks.
Timing belts are typically located in front of the engine and are often behind a cover for protection against dust and debris. However a few engines since 2008 have used "wet timing belts", whereby the belt is lubricated by engine oil to reduce friction losses by 30% and thus reduce fuel consumption by 1%. [ 7 ]