With the Vibrocore Rim, Spank has taken a noteable step in bike wheel innovation. Vibrations are dampened with the use of a hard cell foam injected into its hollow construction. This low density, pressurized core performs a similar function to the soft tissue inside bones, increasing inner wall strength and absorbing vibrations. With a low profile height and width of 35mm, the Vibrocore Rim can also increase air volume, makes more contact with the trail, and aid in lateral support. From this rim you can expect a makings of both a stiff and responsive wheel.