Yamaha YZ450FX 2019 Owner's Service Manual page 188

Relay arm bolt (swingarm side)
70 N·m (7.0 kgf·m, 52 lb·ft)
• Rear shock absorber assembly lower bolt
Rear shock absorber assembly
lower bolt
53 N·m (5.3 kgf·m, 39 lb·ft)
REAR SHOCK ABSORBER ASSEMBLY
4-60