2003 Suzuki LT-Z400 Factory Service Manual, Page 302Get this manual
SERVICING INFORMATION
Wheel rim size Tire size Tire type Tire tread depth
Front Rear Front Rear Front Rear Front Rear
STANDARDSPECIFICATION 10 5.5 AT
9 8.0 AT AT22 7R10 AT20 10R9 t?t? DUNLOP: KT331 DUNLOP: KT335