There are many benefits riding a bicycle. It's very environmental-friendly since bicyles only require human force to operate. They won't pollute the air with toxic gas. When riding a bike, you are doing physical exercise so it will make you in shape. A bike is also much cheaper than a car, any students could afford a simple bike. And it's very convenient to park.
Bicycles are important transport. There are many advantages to go to school by bike.
Firstly, it is cheap and fast when your home isn't far from school. Secondly, it is a good way to exercise and it can make you strong and healthy. Thirdly, when you go to school by bike, you can enjoy the beautiful sceneries and at the same time you can enjoy a wonderful talk with your friend. But when students ride their bikes, they must obey the traffic rules and they shouldn't do dangerous tricks on their bikes.
As far as I am concered, their bikes must have brakes. What's more, they should learn basic cycling skills and check the tires often.