Schwinn none - Manual (Page 66)

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Tire Inspection
Tires must be maintained properly to ensure road holding and stability. Check the following areas:
Inflation: Ensure tires are inflated to the pressure indicated on the tire sidewalls. It is better to use a tire gauge
and a hand pump than a service station pump.
Caution: If inflating tires with a service station pump, take care that sudden over inflation does not cause
tire to blow up.
Bead
Seating:
When inflating or refitting tire, make sure that the bead is properly seated in the rim.
Tread: Check that the tread shows no signs of excessive wear or flat spots, and that there are no cuts or other damage.
Caution: Excessively worn or damaged tires should be replaced.
Valves: Make sure valve caps are fitted and that valves are free from dirt. A slow leak caused by the entry of the dirt can
lead to a flat tire, and possibly a dangerous situation.
Recommended Tire pressures:
The recommended pressure molded on the sidewall of your bicycle tires should match the following chart.
Use this as a general guide.
BMX
MTB
Road Touring
Road Racing
Hybrid/Crossbike
35-50 p.s.i.
40-65 p.s.i.
70-90 p.s.i.
110-125 p.s.i.
60-100 p.s.i.