2015 Kawasaki Vulcan 900 Classic Owners Manual - Page 128
2015 Kawasaki Vulcan 900 Classic Manual
Page 128 highlights
MAINTENANCE AND ADJUSTMENT 127 ○Measure the tire pressure when the NOTE tires are cold (that is, when the motorcycle has not been ridden more than a mile during the past 3 hours). ○Tire pressure is affected by changes in ambient temperature and altitude, and so the tire pressure should be checked and adjusted when your riding involves wide variations in temperature or altitude. Tire Air Pressure (when cold) Front Up to 180 kg 200 kPa (397 lb) Load (2.00 kgf/cm², 28 psi) Rear Up to 97.5 kg 200 kPa (215 lb) Load (2.00 kgf/cm², 28 psi) 97.5 ∼ 180 kg 225 kPa (215 ∼ 397 (2.25 kgf/cm², 32 lb) Load psi) Tire Wear, Damage As the tire tread wears down, the tire becomes more susceptible to puncture and failure. An accepted estimate is that 90% of all tire failures occur during the last 10% of tread life (90% worn). So it is false economy and unsafe to use the tires until they are bald.