5. The transverse coupler of claim 1 , wherein the adjustment arm includes an aperture in the first end extending from the first surface to the second surface, the aperture being adapted to receive the force directing member such that the force directing member is free to angulate with respect to the first surface.
5. The transverse coupler of claim 1 , wherein the adjustment arm includes an aperture in the first end extending from the first surface to the second surface, the aperture being adapted to receive the force directing member such that the force directing member is free to angulate with respect to the first surface. 6. The transverse coupler of claim 5 , wherein the first surface of the adjustment arm is configured to engage with the rider and the force directing member extends from the first surface of the adjustment arm at an adjustable angle relative to the longitudinal axis, the adjustable angle ranging from 0 to 90 degrees.