Yamaha YFM90RYXJ Owner's Manual page 126

Caster angle:
3.40 °
Trail:
19.8 mm (0.78 in)
Front tire:
Type:
Tubeless
Size:
AT18 x 7-8
Manufacturer/model:
DURO/DI2017
Rear tire:
Type:
Tubeless
Size:
AT18 x 9-8
Manufacturer/model:
DURO/DI2016
Loading:
Maximum loading limit:
82.0 kg (181 lb)
(Total weight of rider, cargo, accessories, and tongue)
Tire air pressure (measured on cold tires):
10
Recommended:
Front:
24.0 kPa (0.240 kgf/cm², 3.5 psi)
Rear:
24.0 kPa (0.240 kgf/cm², 3.5 psi)
Minimum:
Front:
20.7 kPa (0.207 kgf/cm², 3.0 psi)
Rear:
20.7 kPa (0.207 kgf/cm², 3.0 psi)
Front wheel:
Wheel type:
Panel wheel
Rim size:
8 x 5.5AT
Rear wheel:
Wheel type:
Panel wheel
Rim size:
8 x 5.5AT
Front brake:
Type:
Mechanical leading, trailing drum brake
Operation:
Right hand operation
Rear brake:
Type:
Mechanical leading, trailing drum brake
Operation:
Left hand operation
Front suspension:
Type:
Swing axle
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
126 mm (5.0 in)
10-3