NOTE:
The V-Force 3, 4 and 4R reed valves have features that are not found in any other reed valve on the market.
The special double W design increases the surface area of the slats, thus allowing you to lower the stress and adopt softer slats.
The result is a surprising response at low revs, thanks to the greater softness of the sipes
and a greater reach at the top, thanks to the lower stress of each single blade.
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