2009 Kawasaki KFX450R Owners Manual - Page 124

122 MAINTENANCE AND ADJUSTMENT Wheels Rims: The rims are a drop-center, tubeless tire design. Take care not to damage the sealing surfaces of the tire or rim when removing or installing tires. Note that the rims, like automotive rims, are not symmetrical and should be installed in one direction only. All wheels must be installed so that the valve stems are on the outside of the vehicle. Tires: The front and rear tires are directional knobby tubeless tires. When replacing tires, check the valve stems and cores for damage. Take care not to damage the tire sealing surfaces of the rims. Be certain the directional arrows on the tires indicate rolling forward. Standard Tires Front Rear AT21 × 7R10 KT391 T/L AT20 × 10R9 KT396 T/L NOTE żTires are an important part of the suspension on your ATV. Tire construction characteristics and tire inflation pressure can greatly influence vehicle handling. Kawasaki recommends that you always replace tires with standard replacement tires as shown here. It is also very important to have tires of the same type and size, and at the same inflation pressure, on one axle. żInstallation of non-standard tires, or use of different tires on one axle, can change the handling of the vehicle and possibly result in a loss of control. żInstallation of tubeless tires on rims requires compressed air and is normally recommended as a dealer service operation. However, a tube can be inserted into the tire by the operator as an emergency repair. j Maximum Tire Air Pressure for Seating Beads Front and Rear 250 kPa (2.5 kgf/cm², 36 psi) Payload and Tire Pressure Failure to maintain proper inflation pressures for your tires may adversely affect handling and performance of your vehicle and can result in loss of control. Use the tire pressure gauge in the tool kit to accurately set tire pressure. Tire Air Pressure (when cold) Front 30 kPa (0.3 kgf/cm², 4.4 psi) Rear 27 kPa (0.27 kgf/cm², 3.9 psi)