• ACE AF1 trucks
• Steel axle
• Improved Pivot made of urethane - hardness 96A
• Additional threader for the truck axle
• They have a universal spacing of mounting holes and fit all decks
• New casting technology increasing the durability of trucks
• The size is engraved on each truck in this series

22's:  7.25 - 7.9 = True 7.5 axle 

33's: 7.9 - 8.1    = True 8.0 axle

44's: 8.1 - 8.4   = True 8.25"

55's: 8.5 - 8.7.   = True 8.5"

66's: 8.8 - 9.25 =True 9.0"

77's: 9.3 - 9.6 = True 9.5"