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Typical gear ratios on bicycles range from very low or light gearing around 20 gear inches (1.6 metres per revolution), via medium gearing around 70 gear inches (5.6 m), to very high or heavy gearing around 125 gear inches (10 m). As in a car, low gearing is for going up hills and high gearing is for going fast.
George Barnard Grant (December 21, 1849 – August 16, 1917) was an American mechanical engineer, inventor, entrepreneur and botanist. [1] He is notable for having made important contributions to 19th-century mechanical calculators, for pioneering new techniques in gear making, and for starting several successful companies.
A Suzuki GSX-R1000 at a drag strip – a 2006 model once recorded a 0 to 60 mph time of 2.35 seconds. This is a list of street legal production motorcycles ranked by acceleration from a standing start, limited to 0 to 60 mph times of under 3.5 seconds, and 1 ⁄ 4-mile times of under 12 seconds.
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0-97 km/h (60 mph) in 1.55 seconds; 400 m (approx. 1 ⁄ 4 mile) in 7.97 seconds; Weight: 900 kg (1,980 lb) Battery capacity: 100 kWh; Rear wheel drive; Estimated driving time on a race track at a GT4 pace is about 25 minutes. [4] The car has rear-wheel drive using two electric motors placed inside a specially designed "e-axle", [5] and uses ...
[3] [4] It could accelerate along the 1 / 4 mile test course in 12.4 seconds. [5] When the H1 was first announced, Motorcycle Mechanics criticised Kawasaki for their "own ambitious claim" that it was "the fastest and best accelerating road machine ever produced, being capable of 124 mph and 12.4 sec. for the standing start quarter mile ...
Car and Driver achieved a 0 to 60 mph (97 km/h) acceleration time of 3.4 seconds, and a 1 ⁄ 4 mile (402 m) time of 11.2 seconds at 130 mph (209 km/h). Car and Driver also achieved top gear acceleration 30–50 mph (48–80 km/h) and 50–70 mph (80–113 km/h) times of 1.7 and 2.4 seconds, which are the fastest ever recorded by the magazine ...
To use this method, the user must know the length of their pace to calculate the distance accurately traveled. Also, the number of paces to be walked must be precalculated (example: 2,112 paces= one mile, based on a 30-inch pace), and then the distance traveled has to be calculated from the walked paces.