Optimum tire pressure in a bicycle

The quality and type of tires affects the run-on (rolling) of the bike. The sidewall material, the tread pattern, and the pressure also affect the knurling.

Any cyclist knows that without a pumpget along. It is necessary to pump up tires constantly. Moreover, the pressure in the tires of the bicycle is lost not only while driving, but also at the time when it is parked (only not so fast).

What determines the pressure in a bicycle tire?First, the ride quality. On gently inflated tires, it is more convenient to overcome the unevenness of the roadway, with heavily inflated tires, the bike rides faster. Secondly, pressure affects how long a tire will last, whether there will be punctures in it. If speed and comfort when driving - a matter of taste, then the integrity of the rubber must be taken care of. The point is not even that the punctured wheel will have to be repaired. In some cases, when the pressure in the tires of the bicycle is chosen incorrectly, not only damage is possible, but also severe wheel breakdowns and injuries to the cyclist.

The easiest way is if you have an ordinary pleasurebicycle. Tire pressure in sports models must be controlled more carefully, especially with a hard driving style and on difficult tracks. For those who prefer to drive on an asphalt road or rural paths, it is enough to focus on tire marking. The manufacturer took care of it in advance and inscribed on the side surface what pressure should be in the wheels of the bicycle. It is usually indicated in psi or bar (translated as follows: 1 kPa = psi * 6.895, recall that 100 kPa ~ 1 kg / cm ^ 2 ~ 1 bar.) Without swapping, 1 time per month the tire loses up to 15 psi.

At recreational bikes, tire pressure canvary from 1.5 to 4.5 bar, which is more detailed by labeling. The upper limit is preferable for those who ride on firm and level ground, the lower one is for those who are more likely to meet stones, puddles and grass.

How much pressure should a bike tire have? For sports models the following is recommended:

Track type	Maximum bar
Forest	3,5
City poluslik	5
Road tube	7

The pressure in the rear wheel should be slightly higher than in the front. For a rider of large weight, the numbers must be reduced, and for a child, respectively, to increase.

A gauge is required for measurements.Now many bicycle pumps are equipped with this device immediately, but we must take into account that a small square gauge often gives a large error. When it is critical, it is better to purchase a measuring instrument separately. And owners of tires with the automobile valve can pump up and measure pressure in them at gas stations.

An experienced cyclist can determine the pressure intires without the aid of appliances. You need to clasp the tire with your hand and press on the camera with your thumb. Properly selected pressure will create the feeling that you are squeezing a ripe watermelon.

But within acceptable limits, the wheels can be pumped up in the way that you feel comfortable to drive.

So, many prefer to tire pressurethe bike was bigger. After all, it is convenient in motion. But for beginners, on the contrary, it is recommended to reduce the pressure. And if you want the wheels to last as long as possible, choose the optimal (or average) value of 3 bar or 45 psi.