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Gear inches is one way of measuring the gear ratio(s) of a bicycle, so that different gears and different bicycles can be compared in a consistent manner. 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.
An all-terrain vehicle (ATV), also known as a light utility vehicle (LUV), ... With final drive gearing changes, the ATC could exceed 100 mph. However, due to the ...
The bicycle's short gearing assisted when cycling uphill, but the CVT was noted to significantly increase the weight of the bicycle. [52] The rise of the electric bicycle has brought a reappraisal of the CVT as a better solution for an optimal drive train set up in comparison to gearing systems historically applied on human powered bicycles.
In earlier times (pre-WWII), hand-operated gear changes were common, with a lever provided to the side of the fuel tank (above the rider's leg). British and many other motorcycles after World War II used a lever on the right (with the brake on the left), but today gear-changing is standardised on a foot-operated lever to the left.
Initially, many people were disappointed because the first TRX450R was very weak compared to the CRF450R. Honda claims that it designed the TRX450R engine to produce more torque so that the engine was more suited for ATV purposes. In 2004 and 2005, the only interchangeable part between the ATV and motorcycle engines was the camshaft.
This contrasts with a preselector gearbox, in which the driver selects the next gear ratio and operates the pedal, but the gear change within the transmission is performed automatically. The first usage of semi-automatic transmissions was in automobiles, increasing in popularity in the mid-1930s when they were offered by several American car ...
Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another.
When it was introduced alongside the ALT125 ATC in 1982, it was the first four-wheeled ATV on the market. [2] It had a pull start (no electric starter at all) 124 cc (7.57 cu in) engine, which had a claimed power output of 8.3 kW (11.1 hp) at 7,000 RPM . [ 3 ]