Chips of valves competition BOYESEN motorcycle HONDA MTX, MT, MB ... 50 and 80cc air

Here are the lamellae of BOYESEN valves for HONDA MT, MTX, MB, 50cc and 80cc air cooling.

These competition valves allow you a very good power gain in both spas and high speed baths. The patented BOYESEN system uses 2 slats on each side!

A finer for the couple (resonance frequency at low speed) and a very rigid for high speeds (frequency in very high speed).

These valves are delivered with an ultra complete manual (adjustment carburetor etc etc,) Stops slats special removed and stickers.