Yamaha WOLVERINE X4 2021 Owner's Manual page 177

Minimum:
Front:
90.0 kPa (0.900 kgf/cm², 13.0 psi)
Rear:
145.0 kPa (1.450 kgf/cm², 21.0 psi)
For winch-equipped models:
Vehicle load:
0.0–200.0 kg (0–441 lb)
Recommended:
Front:
83.0 kPa (0.830 kgf/cm², 12.0 psi)
Rear:
97.0 kPa (0.970 kgf/cm², 14.0 psi)
Minimum:
Front:
76.0 kPa (0.760 kgf/cm², 11.0 psi)
Rear:
90.0 kPa (0.900 kgf/cm², 13.0 psi)
Vehicle load:
200.0–490.0 kg (441–1080 lb)
Recommended:
Front:
97.0 kPa (0.970 kgf/cm², 14.0 psi)
Rear:
152.0 kPa (1.520 kgf/cm², 22.0 psi)
Minimum:
Front:
90.0 kPa (0.900 kgf/cm², 13.0 psi)
Rear:
145.0 kPa (1.450 kgf/cm², 21.0 psi)
Front wheel:
Rim size:
12 x 6.0 AT
Rear wheel:
Rim size:
12 x 7.5 AT
Front brake:
Type:
Hydraulic disc brake
Rear brake:
Type:
Hydraulic disc brake
Brake fluid:
Specified brake fluid:
DOT 4
Front suspension:
Type:
Double wishbone
Spring:
Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel:
221 mm (8.8 in)
Rear suspension:
Type:
Double wishbone
Spring:
Coil spring
Shock absorber:
Gas-hydraulic damper
11-4
11