MOOSE RACING Race Piston Pro Kit MPX2083A-P X-Seat Fitment: Aprilia RS660 2019 +

Fitment: Aprilia RS660 2019 +

order the next longest cartridge available on your muffler

The bearing placement is critical to keep the proper distance (air gap) from the rear wheel trigger ring and the rear speed sensor

Good for on-the-fly adjustment of cable tension

Stock Cat and Silencer 17

MOOSE RACING Race Piston Pro Kit MPX2083A-P X-Seat Fitment: Aprilia RS660 2019 +Moose Racing pistons feature X style forgings and fully boxed style (race pistons) forgings for ultimate strength, minimizing friction, durability, power, and weight reduction Pro Race Piston increases the durability by reducing the stresses in the pin bore area Pro Race Piston allows the pin to flex while removing stress from the area Full radius dome designs maximize quench while eliminating hot spots that promote detonation Internal bracing