Initial consonants: z, x, ch

Rhyme: I, ing, e

Tone: fourth tone, second tone, first tone.

Bicycle can be used as an environmentally friendly means of transportation for walking and traveling; More and more people use bicycles as fitness equipment for riding and cycling. Cycling itself is also a competitive sport, including road cycling, mountain cycling, track cycling and acrobatic cycling.

Classification of bicycles:

1, road bike

For vehicles used on smooth roads, due to the low resistance of smooth roads, the design of road bicycles is more concerned with high speed, and they often adopt downward-bent handlebars, narrow high-pressure and low-resistance tires and higher gears that can reduce wind resistance.

And that diameter of the wheel is lar than that of a general off-road vehicle. Because the frame and accessories don't need to be strengthened like mountain bikes, they are often lighter and more efficient when riding on the road. Because the frame does not need to be strengthened, it often adopts a simple and efficient diamond design, and the road bike is the most beautiful bicycle.

2. Exercise bike

Health, fashion, new concept and new concept design of fitness bike, the most important feature is the dual power of hands and feet, the speed can reach 40 km/h; There are many ways to work and the fitness effect is good. When riding this kind of bicycle, both hands and feet can do work on the bicycle drive at the same time, or they can do work with their hands or feet alone.