2 Understanding Risk Factors Certain factors increase your risk of having an artery problem. Some things canât be controlled, such as older age or having a family history of artery problems. But you can control other risk factors, such as: This booklet is not intended as a substitute for professional medical care.
If the reading is lower than recommended, fill the tire with air by firmly pressing the air-hose tip onto the valve stem. You will hear air quietly enter the tire. If you hear air leaking or spraying out, you need to double-check that the connection between the air hose and the tireâs valve stem is secure. 7.
Gas. Some cyclists prefer to use gas cylinders to pump up tires. This type of pump is the smallest of all the pumps and will fit into any small pack on the bike. The gas cylinder fits inside a small housing. The housing attaches to the bike's valve and then a small trigger is used to discharge the gas into the tube.