A shifter is a lever, a lever is a simple machine
I'd say the gears on a bike acts as levers, as pedals and driven wheel turns with different speeds and force.
Wheel and axle.
A sprocket is a lever.
To do bicycling you need a bicycle. And the bicycle is a man-made item relying heavily on techology to provide all the bits and pieces.
Gears on a bike are a type of wheel and axle simple machine. As the pedals turn the circular motion into rotational motion, the gears on the bike increase or decrease the force needed to propel the bike forward.
Eliptical Machine
When choosing replacement bicycle pedals, important factors to consider include the type of riding you do (road, mountain, etc.), the material of the pedals (aluminum, plastic, etc.), the size and shape of the pedals for comfort and grip, and the compatibility with your bike's crankset.
Handlebars are a lever because you put your weight upon them to balance.
A pulley isn't a kind of simple machine, it is a simple machine
The type of simple machine that a slope is, is a inclined plane
There are three main types of bicycle pedals available in the market: platform pedals, clipless pedals, and toe clip pedals. Platform pedals are flat and provide a large surface area for the foot. Clipless pedals require special cycling shoes with cleats that attach to the pedal. Toe clip pedals have a cage that secures the foot in place with straps. Each type of pedal offers different benefits for different types of cycling.
The different types of bicycle foot pedals available in the market include platform pedals, clipless pedals, and toe clip pedals. Platform pedals are flat and provide a large surface area for the foot. Clipless pedals require special cycling shoes with cleats that attach to the pedal. Toe clip pedals have a cage that secures the foot in place with adjustable straps. Each type of pedal offers different benefits for cyclists based on their preferences and riding style.