How do bikes work?

Answer 1

A bicycle is one of the most efficient forms of transport. It works with pedals, which are connected via a chain to the back wheel. The rotation of the pedals moves the chain across gears on the rear wheel, rotating it. To change the gear ratio, the chain is moved to different sized gears of the wheel. The steering works by rotating the front wheel using the handle bars, reorienting the bicycle in a different direction. The brakes work with cables, pulling two rubber plates against the wheel. Newer models have circular plates, which lock onto the spokes of the wheel. This prevents the rubber from being worn down, and is more efficient.

Manpower.

Bicycle uses mechanical energy. It takes the principle of axle and chain. When we paddle, the chain rotates the axle and the wheel also revolves.
The pedals on a bike are connected to a gear that turns the chain. The chain is also connected to a gear that is attached to, and therefore turns, the rear wheel. The rear gears are set up so that when turning forward the will turn the wheel but when turning backward or not moving at all the gears have no effect on the wheel. Different gears are used to gain more speed - a larger gear at the front means the smaller gear at the back will turn faster.
bicycles work through a series of gears and pulleys that move when you petal your petals. When they move the gears and pulleys move thus making the wheels move, propelling you forward so long as you're balanced. that is how a bicycle works.

Answer 2

When you push the pedals on your bike they are connected to a system of gears that turns the wheels, thus pushing them forward. These gears are on a chain that is sometimes visible but most of the time in a chain guard, which is usually removable for cleaning etc.

Answer 3

There are several types of brakes, and there are both similarities and differences in the way they work. What they all ( apart from e-bikes with regenerative braking) have in common is that they push a fixed part (brake shoe/pad) against a moving part and use the resulting friction to slow the wheel's movement. Basic brake types are: * rim brakes, which can be cantilever, caliper, or linear, also called v-brakes. The rim gets pinched between brake pads and that's where the actual braking gets done. * hub brakes, which can be disc, or various types of drum brakes. Apart from the above brakes can be either mechanical, activated by cable pull, or hydraulic, activated by a plunger moving a fluid. There's also the coaster brake, a drum brake integrated into the hub that's activated by pedalling backwards. There's also a crude brake type still occasionally found on toy bikes known as spoon brakes. On a spoon brake something gets pushed directly against the tire to do the braking.
When you squeeze the brake levers, this motion cause the brake pads to make contact with a rotating part of the wheel (usually the rim or a brake disc). The friction between the rotating part and the brake pad cause the part(and the bike) to slow down.
They work on a Hydraulic System. The liquid in the wire is pushed down by the thing that you squeeze, it then presses the rubber to the wheel to stop it.
Depends on the type of brake. Disc brakes work by pinching a rotating disc between two brake pads mounted in a caliper, and the frictions slows the disc down. As the disc is mounted to the hub of a wheel this als slows the wheel down and with that the vehicle.

Drum brakes work by having two stationary semi-circular brake shoes inside a rotating drum. When the brake is activated the shoes are forced apart, against the inside of the drum. And the friction slows the vehicle down.

If the question is about a bicycle, it can also be a rim brake. Rim brakes work pretty much like a disc brake, only that it's the whole rim that acts at the disc.

Answer 4

Basically it's an axle that's threaded at one end and has a platform of sorts at the other. The threaded end goes into the crankarm and the platform goes under your foot, then you push. The left side pedal has a reverse thread to keep it from unscrewing from something called precession as you ride.

Bike pedals use the function of a wheel and axle. The pedals are extensions of the pedal axle, allowing you to turn the central axle by forcing the pedals (with the help of your weight and gravity) in a circular motion. The driving sprocket is attached to the center of the pedal axle, and also turns. This pulls on the chain attached to the similar geared spocket on the axle of the rear wheel. As the pedals turn, the pedal axle turns, the chain goes around, and the rear wheel rotates, pushing you forward. All you need to do is shift your body weight, along with the push of your leg muscles, from one pedal to the other, and drive the bicycle forward.

Answer 5

A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle.

This a good resources if you want to know more: http://en.wikipedia.org/wiki/Bicycle_chain

Answer 6

A bicycle works because the force exerted on the pedals moves the axle on the bike. When the axle moves, the entire wheel moves, making friction, that pushs the bike forward.

Answer 7

The pedals turn the chain which turns the wheels. Your legs turn the pedals.

Answer 8

How does bicycles work