In this category you will find all the valve lash adjustment pads we can have for your YAMAHA YZF, WRF, YZ125F, YZ250F, YZ450F, WR450F, WR250F,... 4 stroke motocross bike. We propose you the pellets has the unit but also complete boxes. These products are of excellent quality and very precise. It is very important to check your valve sets every 10 hours to avoid any breakage or loss of performance