The wheel hub, speed change and braking system adopt the full set of products of Shimano, and the tires are Michelin. Replace the pedal and put on a set of shock absorbers. If the frame is good, this configuration can be considered top-class, but the speed change and braking system will exceed 1000, one hub will cost 300 to 400, and two wheels may cost more than 700. Michelin tires are all above 100 yuan, and 200 pedals and shock absorbers range from 1000- 10000 yuan. Your investment may exceed 5,000 yuan.

The car can be equipped with a pump, which is very practical; You can add a flashlight, two wine bottle racks, a speedometer and an accessory bag to ride at night, which is very professional. Giant's pump, 68 yuan, a flashlight around 30 yuan. A bottle rack is about fifteen, a speedometer is about one hundred, and a traveling bag is about thirty yuan.