It takes me half an hour to go to school by bike.

It takes me half an hour to go to school by bike.

Bicycles, also known as bicycles or bicycles, are usually small land vehicles with two wheels. After people get on the bus, they are green and environmentally friendly vehicles powered by pedaling. British bicycles. Where bi stands for two, and cycle stands for wheels, that is, a two-wheeled vehicle. In China, Taiwan Province Province and Singapore, it is usually called "bicycle" or "bicycle".

In Hong Kong and Macao, it is usually called "bicycle" (in fact, it is generally called in Cantonese); In Japan, it is called "self-transfer". There are many kinds of bicycles, including single bicycle, double bicycle and multiplayer bicycle.

It can be used as an environmentally friendly means of transportation and tourism; 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.

classify

1. Ordinary bicycles generally refer to Kun cars. The riding posture is standing with bent legs, which has the advantage of high comfort and is not easy to get tired after riding for a long time. The disadvantage is that the leg bending posture is not easy to accelerate, and it is difficult to achieve high speed because most ordinary bicycle parts use very ordinary parts.

2. Road bicycles are used on smooth roads. Because the resistance of smooth road surface is small, 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.