Schwinn Fitness Crank arm pin type for AD-4

For the Airdyne 3 & 4, you need to switch the left and right to be able to get these to line up. Left on the right side and right on the left. These are the only option of crank arms available for these two machines.

Airdyne - 3550012 - Charcoal
Airdyne AD3 & AD4

AirDyne AD5 Pro/Comp
Airdyne Evolution Pro/Comp