A = Air
- Squeeze the tires. They should feel rock hard.
- Use a pump with a gauge to inflate the tires to their recommended pressure, which is written on the side of the tire. (Look for “inflate to 35-60 psi” or “maximum inflation 120 psi.”)
- Inspect tires for large cuts, bald spots, or dry, cracked sidewalls. Replace your tires if you see any of these problems.