A snowboard includes one or more stiffening plates mounted to the top surface of the snowboard. The plates serve to stiffen localized areas on the snowboard in order to change the flexion and torsion characteristics of the snowboard in that localized area. The location of the stiffening plates can be...http://www.google.co.uk/patents/US5984343?utm_source=gb-gplus-sharePatent US5984343 - Sliding apparatus having adjustable flexion and torsion characteristics
Sliding apparatus having adjustable flexion and torsion characteristics
