# It will may ruin the tire rims when pump up casually

It’ not comfortable to cycle and will may ruin the tire rims when pump up casually. It’s a big Knowledge that how to inflat a bicycle tire.

Many cyclists buy new bicycles, whom tend to cherish them. It must scrub it “head to toe” after cyling. They treated the bicycle as their other half. However, I found that many people have cared for their bikes, while the details are not completely done. For example, some new cyclists may spend a long time on bicycle repair shop to pump up bikes, or just buy a gas cylinder at home. They don’t know, it can not guarantee the comfort of cycling, And it may also cause irreversible damage to tires and rims, over time.

Therefore, understanding the tire’s air pressure parameters and preparing a vertical air pump with a barometer at home should be valued by every cycling enthusiast.

What is PSI?

Look closely at your bicycle tire, which is printed or embossed with the words xx PSI (xx is a number), which is the maximum pressure that the tire can withstand. PSI is called Pounds per square inch.” P” refers to pound, “S” refers to square, “I” refers to inch. One standard atmospheric pressure is approximately equal to 14.6 PSI.

What is a barometer pump?

A gas cylinder with a barometer can be easily distinguished from its appearance. As long as you see a circular dial with a pointer on the regular gas tube, that’s right. This dial may be connected to the gas cylinder after the nipple, showing the current value of the tire air pressure.

How to use the barometer pump properly?

A gas cylinder with a barometer allows us to accurately input the corresponding value of the air pressure. Then, how should we reasonably control the tire pressure value? Generally speaking, the tire pressure range of mountain bikes is 35-65 PSI, and the road bicycles is 80-135 PSI (Look at the specific parameters marked on the tire).

High pressure, not only may lead to puncture, but caused the rubber over-expansion that accelerated aging, thereby reducing the life of the tire. Further, the air pressure is too high, the inner rim will be subjected to very high expansion forces from the wheel. If the rim material strength is low, permanent deformation may occur! (The Carbon Bike Rims is better that other materials.) Moreover, excessive tire pressure may increase the resistance when cycling.

While the pressure is too low, it will be very laborious when cycling,and increases the possibility of sharp objects into the tire. Cycling outside, repairing the tires will make you down.

Within the specified pressure range, reasonably adjust the tire pressure, can bring a better cycling experience. On a flat and dry road surface, the tire pressure can be appropriately increased to reduce the contact area of the tire, resulting in lower riding resistance. On a slippery and uneven road surface, lower pressure can increase the tire touch area, grip. To ensure the stability of the cycling exercise.

The same as the professional teams. To road cycling races, such as the Tour de France, which are dominated by conventional roads, the team technicians usually drive higher tire pressures for the participating bicycles. While the tire pressure will be lower, when cycling in the cobblestone track.

Is the barometer pump expensive?

Many non-professional-level air pressure gauges are tens of dollars, enough for general enthusiasts to use. Of course, expensive professional-grade air cylinders have higher barometer accuracy, single air intake and durability.

Interactive Topic: Do you have experience with rims or tire damage caused by random air? Are you using a gas cylinder with a barometer?

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