# How Do Bike Gears Work Physics

### Now on my bicycle there is a gear attached the pedal that is 19 cm.

How do bike gears work physics. Play around with the gears. It s true that a bike with more gears often has a wider range than one with fewer gears but not always and even if it does you don t necessarily need the widest gear range possible. Instead of touching directly and rotating in opposite directions each pair of gear wheels is connected by a flexible metal chain kept taught by a springy lever and gear shifting mechanism called a derailleur so they turn in the same. A gear with a radius of 0 1 m.

How bicycle wheels work. Bicycle gearing physics velocity gear ratios torque and force explained. If a smaller gear is driven by a larger gear the larger gear will rotate quickly but will have a smaller moment. Bikes have two sets of different sized gears on the wheel you pedal and the back wheel.

For example a high gear on a bike or car. On this page i will explain some of the main aspects of the physics of bicycles which should give the reader a greater appreciation of how bicycles work from a physics perspective. Think of it like this. That s how a wheel helps you go faster.

The axle turns only a short distance but the leverage of the wheel means the outer rim turns much further in the same time. Even riderless bicycles are stable if given enough forward velocity. There s no use in buying. Bicycles use gear ratios to change how the force put into the bike is used to make the bike go fast.

Like a car wheel a bicycle wheel is a speed multiplier. You can t know the gear range of a bike by the number of gears it has. You just need enough of a range. Consult your bike shop at the time of purchase on how yours work or simply jump on your bike make sure to pedal and push your shifters to get a sense of how they function.

The pedals and gears turn the axle at the center. Gear ratios that s the basic idea behind applying force to a bicycle or any object really but there s a bit more to it than that. Bicycle physics stability bicycles are inherently stable when riding.

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