Retro Arms AOE Piston Head Pad - 2mm
- This Retro Arms AOE Piston Head Pad allows you to correct your Angle of Engagement (AOE).
- This is to ensure that your gear set is meshing with your piston properly.
- Incorrect AOE can cause improper cycling of the piston, which eventually will cause premature gear and piston failure.
- Thickness: 2mm.