Yamaha YFM09GYXM 2020 Owner's Manual page 120

Front tire:
Size:
AT19X7-8
Manufacturer/model:
DURO/DI2044
Rear tire:
Size:
AT18X9-8
Manufacturer/model:
DURO/DI2045
Tire air pressure (measured on cold tires):
Vehicle load:
0.0–92.0 kg (0–203 lb)
Recommended:
Front:
25.0 kPa (0.250 kgf/cm², 3.6 psi)
Rear:
25.0 kPa (0.250 kgf/cm², 3.6 psi)
Minimum:
Front:
22.0 kPa (0.220 kgf/cm², 3.2 psi)
Rear:
22.0 kPa (0.220 kgf/cm², 3.2 psi)
Front wheel:
Rim size:
11
8 x 5.5AT
Rear wheel:
Rim size:
8 x 5.5AT
Front brake:
Type:
Mechanical leading, trailing drum brake
Rear brake:
Type:
Mechanical leading, trailing drum brake
Front suspension:
Type:
Swing axle
Spring:
Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel:
126 mm (5.0 in)
Rear suspension:
Type:
Swingarm
Spring:
Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel:
145 mm (5.7 in)
Electrical system:
System voltage:
12 V
Ignition system:
CDI
Charging system:
AC magneto
11-3