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Gears and chain drive have made cycling easier, and definitely more fun. The two practically channel the energy that makes the bicycle move forwards. Butr, this may not always be true. Previously, the bicycle pedals were attached to the wheels, and cycling was not easy. It was only when the chain drive was developed that the bicycle got its modern appearance.
The cyclist could move the rear wheel forward by applying pressure on the pedals that were attached to the chain drive. Of course, the greater the pressure, the greater was the pull on the rear wheel. The chain drive also made it possible for the cyclist to sit between the two wheels and pedal comfortably. It also enhanced the balance of the cyclists.
The chain drive bicycles were effective for downhill riding and on flat surfaces. They made it possible for the rider to ride fast without falling down. However, there was always the risk of the trousers getting stuck in the chain, and cyclists used tie strings to stop their trousers from flapping in the wind.
Another common problem was grease that was applied on the chain drive to reduce the friction between the cogs and the teeth. The grease used to rub off on the skirts worn by women and trousers worn by men. To prevent this from happening, metal covers were installed on top of the chain drive. These metal covers prevented the dresses from coming into contact with grease.
Also, when it came to riding on steep inclines or against strong winds, the cyclists had to strain themselves. Mostly often, they had to stand on the pedals to push the bicycle forward. To overcome this problem, gears were developed. The gears made riding much easier in difficult situations; they also gave greater control to the cyclist.
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The cyclists could change gears according to the topography of the land. If they were riding uphill, then they could choose the gear that allowed the pedals to be turned more smoothly for each single turn of the wheel. On the other hand, when riding on flat surfaces, the gears make certain that the wheel turned several times with each turn of the pedal.
The bikes used by professional cyclists have very high quality gears. This permits them to pedal at rates that vary from 75 to 120 RPM. In mountain biking, however, especially when the cyclist is going uphill, the rate of pedaling comes down to 50 RPM. This is because of greater effort needed to turn the wheel.
Tagged with: biking tips • safety gear
Filed under: Bikes