Honda PIONEER SXS1000 2016 Owner's Manual page 192

Tires
Air Pressure
Refer to Safety Precautions on page 111.
Properly inflated tires provide the best combination of handling,
tread life, and driving comfort. Generally, underinflated tires wear
unevenly, adversely affect handling, and are more likely to fail from
being overheated. Overinflated tires make your Honda SXS drive
harshly, are more prone to damage from surface hazards, and wear
unevenly.
Make sure the valve stem caps are secure. If necessary, install new
caps.
188
Servicing Your Honda