What are cranks and rockers

Crank and rocker refer to:

1. Crank:

Crank refers to bicycle accessories, and a loose crank in a bicycle often makes a clicking sound. When checking the crank problem, first turn the crank to a horizontal position, and at the same time press down the cranks on both sides, then turn the crank 18 degrees and repeat the same action. If the crank will shake, fasten the crank fixing bolt. The crank of a new bicycle should be inspected frequently.

2. Rocker:

Rocker generally refers to a rocker designed for arcade game, flight simulation and other games. Generally used in fighting games such as king of fighters and Street Fighter. Most of them are designed directly using the flight control lever of aircraft as the prototype.

The joystick is used to adjust the direction, which directly affects the flight state in the flight game. Buttons including machine gun trigger and missile launch are designed on the joystick, which can be used for bullet launch and missile launch in the game.

Extended information:

In a bicycle, because the cranks are the same length, it is equivalent to letting legs with different lengths draw a circle with the same radius. If this circle is big, it is not suitable for short legs. If this handle is short, the big man can't get the power.

It can be simply considered that the corresponding relationship between crank and height is as follows: the most common crank length is 17, which is suitable for people over 17; Cranks with a length of 175MM should be used if the height exceeds 175.

165MM cranks should be used for those with a height of 165; Riders under 165 should use cranks with a length of 152-165 mm. People's adaptability is very strong, and they can do it without following this correspondence. As a result, they can't look at it for a long time.

Baidu encyclopedia-crank

Baidu encyclopedia-rocker.