The wheels.
Putting weight on the forward pedals puts tension on the chain, which rotates the rear wheel and pushes the bike forward.
Anything that spins. Like planets, stars, moons, expensive billboards, a top, a bicycle wheel, a basketball on a finger, etc.
I don't know about bi but the word cycle comes from the Greek word cyclos meaning circle
The force that makes a bicycle move forward is generated by the rider pushing the pedals, which rotates the chain connected to the wheels. This rotational force is transmitted to the wheels, causing them to turn and propel the bicycle forward. friction between the tires and the ground helps to convert this rotational force into linear motion.
A classic example of a wheel and axle is a bicycle. The wheel rotates around the axle, allowing the bike to move forward efficiently. Another example is a screwdriver, where turning the handle (wheel) rotates the rod (axle) to drive a screw into a surface.
The purpose of a bike rear skewer is to secure the rear wheel to the frame of the bicycle. It contributes to the overall performance by ensuring that the rear wheel stays in place and rotates smoothly, which is essential for stability, control, and efficiency while riding.
It rotates.
20 rpm
gyroscope rotates
bi means 2 and cycle, cyclic means something that turns, rotates. Two spinning wheels, that's a bicycle.
Earth rotates on its axis.
The anagram of rotates is toaster.