Depends on where youre starting from, and how you ride.
Bicycling is a low-load, high-repetition kind of exercise, which usually don't give that much of muscle growth. But if you've been very passive otherwise, expect to see some development in calves, thighs and buttocks.
The more you ride in high-power situations, out of the saddle, pushing hard, the more muscle growth you'll see.
Don't overdo though, as that kind of riding puts a lot of stress on the knees.
For the knees, spinning light-and-fast is a lot better.
A bike by itself doesn't do anything, apart from possibly rust slowly.
But yeah, riding a bicycle can give you a workout.
A little.
Not much.
a bicycle for transportation
Yes, it is scientifically shown that bicycle helmets do work. They help to absorb the impact from a crash and protect your skull and brain.
The pedals, crank, chain, sprockets, and wheels. Along with the rider, they all work together to make the bicycle go.
Bicycle brakes are usually levers
I don’t know
when you pedal, they go round?!?
The muscle strenght of the rider.
James Starley did not work for any specific company. He was an English inventor and industrialist known for his pioneering work in the development of the bicycle, particularly the development of the penny-farthing bicycle. Starley founded his own bicycle manufacturing company, Starley & Sutton Co., in Coventry, England in the 1870s.
Friction and pressure.
Pretty much like a strangely shaped torch - with the added extension that sometime they draw their power from a generator on the bicycle
Bicycle tube valves are one-way valves. They let air pass one way, then holds it in.
Tsisi 'izii - Bicycle. Comes from the original word: Ch'ee ndzin 'esii meaning tiring work to pedal.