A bicycle is one of the commonest and most successful man-powered machines used for traveling the world over. To go around riding a bike wastes nominal energy as only a little friction between its wheels and road has to be got over.
The pedals and wheels of a bicycle are mounted on ball-bearings. As the result, they can turn around very easily. If you are traveling down a slope, you need not pedal even. The bicycle will move at a faster speed due to the earth’s gravity.
Gears in a bicycle make it easier for the bike to move. The gear-levers shift the chain from one set of toothed wheels to another set. The chain indeed connects on a small chain-wheel to a large gear sprocket on the hind wheel.
Brakes are there to stop the moving bike whenever we like to do so. Bicycles for ladies have a low cross-bar so that they can cycle even when wearing a long skirt.
– nominal : ស្តួចស្តើង
– friction : កកិត
– pedals : ឈ្នាន់
– mounted : ដាក់
– ball-bearings : ដុំកង់
– toothed : ធ្មេញរបស់ដុំកង់
– sprocket : ថាស់កង់
– hind wheel : កង់ក្រោយ
– low cross-bar : តួកង់ស្រី (គ្មានដែកកាត់ត្រង់នៅលើតួកង់)