it just looks it its not really going backwards, that's what they call an optical illusion.
Dust caps are a good way to keep grime from entering the valve. There are different type on the market, including ones that will light up when your wheels rotate. This kind of dust cap does attract theft, so it is best to have a standard type.
What transport has got only two wheels
TSW Alloy Wheels are available at many online and offline stores. For online orders one can use sites such as Amazon, Buy Wheels Today and Wheel Fire.
The most expensive alloy wheels are available at TSW. They provide custom designed allow wheels which are made of a gold alloy. Some of the most popular are 30 inch wheels that were made for a Jaguar.
HSV alloy wheels usually cost from $20 upwards. The price depends upon the type of car the wheels are for and if they have any additional fancy work on them.
Unless a brake is engaged, the wheels on a car in neutral can rotate backwards. If the car is in gear, wheels attached to the power train probably will only rotate backwards if the car is in reverse gear. If it is in forward gear or "park" they should not rotate backwards. Wheels not connected to the power train should be able to rotate either direction.
The bottom of the wheels.
The wheels of a vehicle may rotate in different directions if they have a system that is called "spur-gear differential." Pinion pairs are displaced axially, and mesh part of the length between two spur gears, results in rotation in opposite directions.
The bottom half of the wheels
the rear wheels turn with the front at high speeds, and opposite at low speeds.
They rotate and can be braked, just like auto wheels. Nose wheels can be steered.
With a chain drive the driven wheel will always rotate in the same direction as the drive wheel, but in a gear drive the direction of rotation will change between drive wheel and driven wheel.
Cars have circular wheels to move the easiest. Because of the circle's shape, the wheels can rotate easily. If they were not circles, it would take a great amount of work and energy to get the wheel to rotate.
The skater "acts" on the wheels attached to the skates, causing momentum. This momentum causes an "unbalanced force" that acts with the same amount of force, but in the opposite direction of the skater. The skater acting on the skate wheels produces an equal net force in the opposite direction, which keeps the skater moving.
It's called the strobe effect and it's because a film is a series of still pictures, about 24 per second. If in 1/24 second a spoke rotates to just behind where the next spoke was in the previous picture, you see the strobe effect with the wheel going backwards.
Usually the back wheels are the ones connected to the engine, providing the power to rotate the tracks, and these are the drive wheels. The rest are bogey wheels.
While turning, the inside wheels take a shorter path than the outer wheels so they must rotate at different speeds.