Riding several tires as well as compounds over the years, I decided to write some of the optimal tire pressures that I felt worked the best in a variety of conditions. Here are five major brands and their pressures, that I thought could be some benefit to you. If you're wondering what PSI to run in your new tires, look no further than the tire pressure bible below. Yes, you will see that some soft terrain tires are still categorized under the “Intermediate/hard Terrain”. That is because some soft terrain tires have an optimal feel in intermediate conditions. These tire settings are for: 80/100-21, 120/80-19, 110/90-19, 100/90-19, 120/90-19.
Pirelli:
Soft Terrain:
MX32 Mid Soft Front/Rear: 13.5/14 PSI
MX 32 Mid Hard Front/Rear: 13.5/13 PSI
Intermediate/Hard Terrain:
MX32 Mid Soft Front/Rear: 14/14 PSI
MX 32 Mid Hard Front/Rear: 13.5/13 PSI
Dunlop:
Soft Terrain:
MX 33 Front/Rear: 12.5/12.5 PSI
MX53 Front/Rear: 13/13.5 PSI
MX3S Front: 13.5 PSI
Intermediate/Hard Terrain:
MX 33 Front/Rear: 12.5/12.5 PSI
MX53 Front/Rear: 13/13.5 PSI
MX3S Front: 13.5 PSI
Bridgestone:
Soft Terrain:
X20 Front/Rear: 13/12.5 PSI
X30 Front/Rear: 13/12.5 PSI
Intermediate/Hard Terrain:
X20 Front/Rear: 13/12.5 PSI
X30 Front/Rear: 13/12.5 PSI
Michelin:
Soft Terrain:
Starcross 5 Soft Front/Rear: 13.5/13 PSI
Starcross 5 Medium Front/Rear: 13.5/13 PSI
Intermediate/Hard Terrain:
Starcross 5 Soft Front/Rear: 13.5-14/13.5 PSI
Starcross 5 Medium Front/Rear: 13.5/13 PSI
Hoosier:
Soft Terrain:
MX25S Front/Rear: 13/14 PSI
MX30 Front/Rear: 13/13.5 PSI
Intermediate/Hard Terrain:
MX25S Front/Rear: 14/14 PSI
MX30 Front/Rear: 14/13.5 PSI