33: For boards 8"

44: For boards 8.25"

55: For boards 8.5"

66: For boards 9"

77: For boards 9.5"

80: For boards 10"

• Strongest cast Ace ever made- all-new proprietary process
  
• Re-threading axle nuts
• Upgraded 96a urethane pivot cups for maximum durability
• Improved suspension- refined bushing and washer shapes
• Upgraded SCM440 alloy steel axles that won't slip
• Higher grade aluminum with T6 heat treatment
• Refined baseplate for improved strength
  

-Sold as a pair (2)