2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 35Get this manual
CHASSIS SPECIFICATIONS EBS01003
CHASSIS SPECIFICATIONS
Item Steering system Steering bearing type Front suspension Shock absorber travel Fork spring free length Spring fitting length Spring rate (K1) Spring rate (K2) Optional spring Rear suspension Shock absorber travel Spring free length Spring fitting length Spring rate (K1) Stroke (K1) Optional spring Swingarm Free play limit Standard Ball and race bearing 110 mm (4.33 in) 265 mm (10.43 in) 255 mm (10.04 in) 19.6 Nmm (2.00 kgmm, 112 lbin) 39.2 Nmm (4.00 kgmm, 224 lbin) No 116.0 (4.57 in) 259 mm (10.20 in) 244 mm (9.61 in) 46.0 Nmm (4.69 kgmm, 263 lbin)116.0 mm (04.57 in) No end side Front wheel Type Rim size Rim material Rim runout limit Limit -1 mm (0.04 in) mm (0.04 in) -2.0 mm (0.08 in) 2.0 mm (0.08 in) -2.0 mm (0.08 in) 2.0 mm (0.08 in)