5 sizes available:

• 3.8" sea level 21+psi
• 3.8" 4000' elevation 17psi
• Belt: Bando USA 6PK1285

• 4.1" sea level 18psi
• 4.1" 4000' elevation 14psi
• Belt: Goodyear 1060514 (6PK1306)

• 4.5" sea level 15psi
• 4.5" 4000' elevation 12psi 
• Belt: Goodyear 1060520 (6PK1325)

• 4.9" sea level 12psi
• 4.9" 4000' elevation 9psi
• Belt: Goodyear 1060525 (6PK1340)

• 5.2" sea level 8psi
• 5.2" 4000' elevation 6psi
  
• Belt: Goodyear 1060532 (6PK1351)

• 5.5" sea level 6psi
• 5.5" 4000' elevation 4psi
• Belt: Goodyear 1060538 (6PK1365)