13mm Fat Boys AE Piston [2.7mm], 3x1.7 Carbon Fiber Option Parts Fits the following vehicles: B7

Fits the following vehicles:  B7

Buttery smooth action and long life from Schelle Tungsten Carbide balls

4 series with the Schelle Aluminum Steering Rack

Ideal replacements for racers who want to win without breaking the bank on full ceramics

Brake cleaner will ruin your bearings

13mm Fat Boys AE Piston [2.7mm], 3x1.7 Carbon Fiber Option Parts Fits the following vehicles: B7Part Number: 1528 Get 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