Longboard-skateboard and longboard-skateboard conversion kit

A structural support member for a conventional snowboard for converting the conventional snowboard to a longboard-skateboard comprising:

• providing a conventional snowboard having a substantially flat deck;
• and
• said deck having a length to width ratio of 6.15 to 1;
• and
• said deck having a deck long-axis;
• and
• said deck comprising an upper surface and a substantially flat lower surface;
• and
• said deck further comprising a front portion, a rear portion and a middle portion;
• and
• a single substantially linear structural member, comprising:
• a length to width ratio of 14 to 1;
• and
• a structural-member long-axis;
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• a first end and a second end at each end of said long axis;
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• both first and second end being between 0.375 and 0.75 of the thickness of the majority of the substantially linear member;
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• said substantially linear member fixedly engaged with said deck substantially flat lower surface with said deck long-axis collinear with said structural-member long-axis;
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• providing a first skateboard truck assembly and a second skateboard truck assembly;
• and
• said first truck assembly mounted on said deck substantially flat lower surface, proximal to said deck front portion;
• and
• said second truck assembly mounted on said deck substantially flat lower surface, proximal to said deck rear portion;
• and
• a conventional snowboard is converted to a skateboard as said substantially linear member provides sufficient structure to prevent excessive flexion of the deck such that the lower portion of the deck does not contact a surface over which the truck assemblies are in contact with;
• and wherein said substantially linear member returns to its original shape after being flexed.