Simplified diagram of gear inches: As the rear sprocket is halfed in size, the distance traveled by the rear wheel doubles, at half the torque.
Gear inches is an imperial measure corresponding to the diameter in inches of the drive wheel of a penny-farthing bicycle with equivalent (direct-drive) gearing. A commonly used metric alternative is known as metres of development or rollout distance, which specifies how many metres a bicycle travels per revolution of the crank.
In contrast to gear ratio which is a relative measure of bicycle gearing giving an indication of the mechanical advantage of different gears, which combined with the wheel diameter determines how far the bicycle advances per pedal or crank revolution.
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.
Gearinches is an imperial measure corresponding to the diameter in inches of the drive wheel of a penny-farthing bicycle with equivalent (direct-drive)...
these factors built in for various popular hub gears). Gearinches = Diameter of drive wheel in inches × (number of teeth in front chainring / number...
and 1/20 in inch measurements, which mesh with linear rack, are actually (linear) circular pitch values with units of "inches" When gear dimensions are...
teeth per inch of diameter of the pitch circle. The units of DP are inverse inches (1/in). DP = Diametral Pitch PD = Pitch Circle Diameter in inches CP = Circular...
A hub gear, internal-gear hub, internally geared hub or just gear hub is a gear ratio changing system commonly used on bicycles that is implemented with...
typically giving a gear range from 1.44–8.32 metres of development (18 to 104 gearinches). Internal-geared hubs with 5, 7, 8, 11 or even 14 gear ratios have...
gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage...
High Gear (1924 film), silent film starring Bobby Vernon and written by Keene Thompson A gear over 100 gearinches, see bicycle gearing A forward gear with...
gears generally have an efficiency around 95%, a few percentage points higher than other gear types. Bicycle drivetrain systems Gearinches Hub gear Oxford...
Metal Gear (Japanese: メタルギア, Hepburn: Metaru Gia) is a franchise of stealth games created by Hideo Kojima. Developed and published by Konami, the first...
The Game Gear is an 8-bit fourth generation handheld game console released by Sega on October 6, 1990, in Japan, in April 1991 throughout North America...
forged aluminium centre lock wheels, with diameters of 20 inches at the front and 21 inches at the rear. Lighter carbon fibre wheels are available as...
sprocket the setting is 32 gearinches in first gear, 44 gearinches in second gear, and 60 gearinches in third gear. This gearing is about 22% lower than...
Landing gear is the undercarriage of an aircraft or spacecraft that is used for taxiing, takeoff or landing. For aircraft it is generally needed for both...
Landing gear extenders are devices used on conventional or tailwheel-equipped aircraft. They move the wheels forward of the landing gear leg by 2-3 inches (5–8 cm)...
sprocket 20 teeth 22-inch (55.9 cm) frame size (PA-06 also available in 24-inch (61 cm)) Single-speed gearing of 58.8 gearinches The classic Flying Pigeon...
specialises in motoring. He is best known for the motoring programmes Top Gear and The Grand Tour alongside Richard Hammond and James May. He also currently...
Samsung Gear S2 is a smartwatch developed by Samsung Electronics running Samsung's Tizen operating system. It was unveiled at IFA in 2015. The Gear S2 was...
side-by-side seating and feature independent pedaling and gear selection. They can have as low as 7 gearinches, giving them remarkable hill-climbing capabilities...
stringbike Shifters Electronic gear-shifting system Autobike Bicycle gearingGear ratio Gearinches Single-speed bicycle Fixed-gear bicycle While several combinations...
will have 24- or 26-inch wheels, a gear ratio of approximately 60 gearinches (~36:15 on a 24-inch rear wheel or ~36:16 on a 26-inch rear wheel) and rigid...
An arresting gear, or arrestor gear, is a mechanical system used to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is...
Global Information