The Ace AF1 size 55 keeps Ace’s turning geometry in its reinforced cast design. The 8.5-inch axle uses a steel axle, hand-poured pivot cups, and the AF1 bushing setup. This pair has a polished finish.
AA 356.2 alloy hanger and T6 heat-treated baseplate
SAE 4140 steel axle with machine-faced hanger ends