BOYESEN Pro Series Carbon Reed Valves

BOYESEN Pro series carbon flap.
Carbon reed valves allow you to control 100% prepared engines. Harder, more resistant and more dynamic, they contribute to the optimization of engine filling and volume. Their composition helps to avoid vibrations of prepared engines at high speeds. Installation on original reed valves.

Adaptability:

pro 57 - 1100 STX/1200 STX-R LIMITED

PRO - 25 - 750 SXI / 800 SXR SUPERSTOCK