Vertical Stiffness

Tests the vertical stiffness when a load is applied to the top of a vertical rim.

The bottom half of the wheel is secured into a gauge in a vertical position. Vertical pressure is then applied to the top of the rim, and downward deformation is measured.

Vertical compliance is critical to ride feel, especially over rough surfaces, and on longer rides. The ideal amount will provide just enough compliance while remaining stiff enough for maximum power transfer during hard efforts.