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According to a study a human at 70 kg (150 lb) requires about 60 watts to walk at 5 km/h (3.1 mph) on firm and flat ground, [6] while according to a calculator at kreuzotter.de the same person and power output on an ordinary bicycle will travel at 15 km/h (9.3 mph), [7] so in these conditions the energy expenditure of cycling is about one-third ...
Cadence can be measured via various types of sensors, for example a simple reed switch and a magnet which detects one revolution each time the crank arm passes a point on the frame, or more advanced sensors based on a force sensor (e.g. pedals), torque sensor (e.g. crank arms) or other types of cycling power sensors.
Speed limit sign in the Republic of Ireland, using "km/h.". The SI representations, classified as symbols, are "km/h", "km h −1" and "km·h −1".Several other abbreviations of "kilometres per hour" have been used since the term was introduced and many are still in use today; for example, dictionaries list "kph", [3] [4] [5] "kmph" and "km/hr" [6] as English abbreviations.
The record hour average speeds for these machines – 90 km/h (56 mph) for men and 84 km/h (52 mph) for women – are faster than a UCI rider could perform even in a short 200-meter sprint for 10 seconds, 72 km/h (45 mph), demonstrating their higher level of efficiency and speed.
Conversion of the Mach unit of speed depends on the altitude at which the speed is measured. That altitude should be specified either in feet (for example, |altitude_ft=10,000) or in metres (for example, |altitude_m=3,749). The altitude cannot be determined accurately and only a whole number is accepted.
Markus Stöckl did beat the serial production bicycle record in 2011 when he reached 164.95 km/h (102.50 mph) on a volcano in Nicaragua and again in 2017 when he reached 167.6 km/h (104.1 mph) down a volcano in Chile. [13] The prototype bicycle record, on a volcano, still belongs to Barone.
The Lotus 108 bicycle, a forerunner to the Lotus 110 Chris Boardman used to set a new hour record of 56.375 km (35.030 mi) in 1996. Chris Boardman took up the challenge using a modified version of the Lotus 110 bicycle, a successor to the earlier Lotus 108 bicycle he'd ridden to victory at the 1992 Olympic Games. South African company Aerodyne ...
Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property.