13mm Fat Boys AE Piston [2.7mm], 3x1.6 Bearings 1 series with 3 gear

1 series with 3 gear also included

1 set for 3-gear transmission

This is a hard anodized narrowed aluminum idler gear for the Team Associated  B7

Works with center diff only

13mm Fat Boys AE Piston [2.7mm], 3x1.6 Bearings 1 series with 3 gearPart Number: 1527 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