2008-2010 Kawasaki KFX450R Factory Service Manual, Page 283Get this manual
10-4 WHEELSTIRES Specifications
Item Wheel Alignment Toe-in of Front Wheel: Wheel (Rims) Rim Size: Front Rear Tires Standard Tire: Front Rear Tire Air Pressure (when cold): Front Rear Maximum Tire Air Pressure (to seat beads, when cold) Tire Tread Depth: Front Rear Standard 20 mm (0.79 in at 1G Service Limit