Strictly speaking, this is either a road car or a cottage car looks like a road car. You won't be comfortable riding, or even uncomfortable after a long time. You may have a sports injury (knee injury is irreversible, and the consequences will be serious to middle-aged and elderly people. There are many stresses on riding a road bike, especially on sports injuries. First, choose big brands. The first and second lines in China are mainly Giant Merida and Xidesheng Decathlon, and the entry level is 2000-3000 (Mei Jie is the first line, so it is close to 3000, and Xihe land is cheaper; Miser Trinidad, a well-known domestic brand in cycling circle, can also be an entry-level brand, around 2000). "You get what you pay for", so-called road cars of unknown brands below 2000 are best avoided, because there are also quality and safety problems. . Second, when buying a road car, you must choose the appropriate frame size according to your height (a powerful brand will mark the "frame geometry size map" and height adaptation table for each model! If not, then avoid it! . Then the technician in the shop will make further size adjustment for you (the height of the cushion, the distance between the front and rear, the height of the front of the car, etc.). ) to achieve riding comfort and avoid riding injury to the waist and legs. Go to relevant websites, such as Zhihu, and search for "road car" to get an introduction before buying.

Giant's frame geometry and height adaptation diagram;

Frame geometry and height adaptation diagram of Traick (one card higher than Giant) (more detailed parameters):

For budgetary reasons, if it doesn't reach 2K, buy a "hybrid sports car" (also called a flat-bar road car), such as Decathlon's, which has about 1000 entry-level French brands, with good quality and design. The height and size of the hybrid sports car are not so strict, and it is also an entry-level 2-3 thousand. The configuration is higher than that of the road car, but the speed is not much lower. If you don't specialize in cycling and fitness, this model is very suitable, but people in China don't know much about it. Except for road bikes, mountain bikes and dead flies, it seems that everyone doesn't know there are other good choices. The "BTWIN" on the lower tube of the frame is Decathlon.

XDS (Xidesheng) RT200 flat-bottomed road bike, more than 2,000 yuan is very cost-effective, but this one has arrived at Simano's Claris suite, and the design is unmatched by those small factions (for example, the car you sent, the wheel set is "knife ring" style, what is the knife ring for? When the speed exceeds 45 mph, 60% of the resistance is wind resistance, so a knife ring is needed, otherwise it is unfavorable, such as fear of crosswind, and climbing is very leg-consuming, although BMC, Lightning, Trick, Pinarello, etc. , participated in three international tours, the cost was as high as 7- 10W, and the total weight of the advanced carbon fiber knife ring and the advanced carbon fiber frame was only 6 kg, which ordinary people could climb by riding. Steel, heavy or poor quality aluminum will be deformed when it falls off the car-so, even if it has a so-called high-end version of 1900, it is a Simano kit, but even if it has such a so-called knife ring, it is not as familiar as they are and will not choose it. )