13mm Fat Boys AE Piston [2.7mm], 2x2.0 T7 The cutouts are designed to

The cutouts are designed to avoid overhang so they don't peel up

Recommended for B7

Also you can run the front length standoffs on the rear shocks to get the shock more upright

Bevel edge rear for faster rebound

13mm Fat Boys AE Piston [2.7mm], 2x2.0 T7 The cutouts are designed toGet the edge on high traction racing with the newest Fat Boys piston technology. 2. 7mm thickness allows for a unique damping effect that is a huge benefit on high traction. The added thickness and square edge Schelle design limits blow by, so the oil is forced through the holes. The added length of hole on the damping valve gives more pack on fast hits all of this shines on high traction where you get more predictable cornering, and less abrupt body