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Riding several tires as well as compounds over the years, I like to write some of the optimal tire pressures every year that I felt worked the best in a variety of conditions. Here are some major brands and the pressures I have found worked the best. If you’re wondering what PSI to run in your new tires, look no further than the tire pressure bible below. These tire settings are for: 80/100-21, 120/80-19, 110/90-19, 100/90-19, 120/90-19 sizes.
Note: If you’re a heavier rider that weighs over 220 pounds without gear going up .5-1PSI on any of these settings will be optimal for you. When you weigh more the tire’s carcass will be working harder (squishing more) so going up a half pound or pound will help from getting pinch flats or experiencing tire roll (when on lean angle).
Note: If you’re a motocross track rider there is no need to purchase ULTRA HEAVY DUTY TUBES. Standard to HD tubes are sufficient for moto. The best inner tubes I have ran are Dunlop as well as Bridgestone’s HD motocross tubes. With either of these tube thicknesses, the tire pressures below are sufficient.
Pirelli:
MX32 Mid Soft Front/Rear: 13.5/14 PSI
MX 32 Mid Hard Front/Rear: 13.5/13 PSI
MX32 Mid Soft “Stadium” Front/Rear: 13/13.5 PSI
MX32 Soft (Scoop) Rear Tire: 13 PSI
Dunlop:
MX34 Front/Rear 13/12.5 PSI
MX 33 Front/Rear: 12.5/12 PSI
MX3S Front: 13.5 PSI
MX53 Front/Rear: 13/13.5 PSI
MX14 Scoop Rear 12.5 PSI
Bridgestone:
X20 Front/Rear: 13/12.5 PSI
X30 Front/Rear: 13/12.5 PSI
X31 Front/Rear: 12.5/12.5 PSI
X40 Front/Rear: 12.5/12.5 PSI
Michelin:
Starcross 5 Soft Front/Rear: 13.5/13 PSI
Starcross 5 Medium Front/Rear: 13/13 PSI
Starcross 6 Soft Front/Rear: 12.5/12.5 PSI
Starcross 6 Medium Front/Rear: 13/13 PSI
Hoosier:
MX25S Front/Rear: 13/14 PSI
MX30 Front/Rear: 13/13.5 PSI
