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A spacer for a sliding device connects a deck to a runner. The spacer may allow relative rotation, pivoting and/or sliding of the deck and the runner. The sliding, pivoting and/or rotating may reduce the stresses experienced at the attachment points of the spacer and the deck or the spacer and the r

A spacer for a sliding device connects a deck to a runner. The spacer may allow relative rotation, pivoting and/or sliding of the deck and the runner. The sliding, pivoting and/or rotating may reduce the stresses experienced at the attachment points of the spacer and the deck or the spacer and the runner. The spacer arrangement may also provide a sliding device with a smoother ride.

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1. A sliding device for supporting a rider when sliding on a surface, comprising:a runner having an upper surface, first and second ends, an intermediate portion between the ends, a width, and a length;a deck elevated from the runner, the deck having a front to back direction, an upper surface that

1. A sliding device for supporting a rider when sliding on a surface, comprising:a runner having an upper surface, first and second ends, an intermediate portion between the ends, a width, and a length;a deck elevated from the runner, the deck having a front to back direction, an upper surface that supports a rider, and a lower surface, wherein a width of at least a portion of the deck is greater than the width of the runner;a first spacer secured to the runner at a runner attachment position and secured to the deck at a deck attachment position so that forces applied by a rider on the deck are transmitted to the runner, and so that the deck is restrained from pivoting about an axis running in the front to back direction; anda second spacer secured to the runner and the deck;wherein at least one of the spacers is constructed and arranged to allow the runner and the deck to pivot in the front to back direction. 2. The sliding device of claim 1, wherein a portion of the deck is free to move in a front to back direction relative to the runner. 3. The sliding device of claim 1, wherein at least one of the spacers is constructed and arranged to allow a portion of the deck to move in the front to back direction relative to the runner. 4. The sliding device of claim 1, wherein the runner and deck are constructed and arranged to allow adjustment of one of the runner attachment position and the deck attachment position. 5. The sliding device of claim 1, wherein the runner is equally spaced vertically from the deck along the intermediate portion of the runner. 6. The sliding device of claim 1, wherein a length of the runner is at least approximately ⅔ a length of the deck. 7. The sliding device of claim 6, wherein the ratio of the width of the runner to the width of the deck is between approximately 0.4 and 0.8. 8. The sliding device of claim 1, wherein a length of the runner is at least approximately ¾ a length of the deck. 9. The sliding device of claim 1, further comprising an intermediate element that is secured between the first spacer and one of the deck and the runner. 10. The sliding device of claim 1, wherein the first spacer is constructed and arranged to allow front to back movement of a portion of the runner relative to the deck without the runner attachment position varying relative to the runner and without the deck attachment position varying relative to the deck. 11. The sliding device of claim 1, wherein the length of the runner is no more than approximately 4/3 a length of the deck. 12. The sliding device of claim 1, wherein the sliding device comprises only one runner. 13. The sliding device of claim 1, wherein the deck is constructed and arranged to support both feet of a rider. 14. The sliding device of claim 1, wherein the runner length is at most 45 inches. 15. The sliding device of claim 1, wherein the runner length and a deck length differ by at most 13 inches. 16. The sliding device of claim 1, wherein the first spacer comprises at least two portions, one portion attached to the deck and one portion attached to the runner, wherein one portion of the spacer is arranged to slide relative to the other portion when one of the deck and runner moves relative to the other of the deck and runner near the first spacer. 17. The sliding device of claim 16, wherein one portion of the first spacer slides linearly relative to the other portion. 18. The sliding device of claim 16, wherein one portion of the first spacer slides in an arcuate direction relative to the other portion. 19. The sliding device of claim 16, wherein the two portions of the first spacer interlock with each other. 20. The sliding device of claim 19, wherein one of the two portions includes a channel in which the other piece slides. 21. The sliding device of claim 1, wherein the first spacer comprises two portions that are arranged to slide relative to each other. 22. The sliding device of claim 21, wherein the first spacer comprises two spa cer portions arranged to rotate relative to each other. 23. The sliding device of claim 1, wherein the first spacer comprises three portions, at least two of which are arranged slide relative to each other. 24. The sliding device of claim 23, wherein one portion of the spacer includes a channel in which another portion of the spacer is arranged to slide. 25. The sliding device of claim 23, wherein at least one of the three portions is arranged to rotate relative to another portion. 26. The sliding device of claim 1, wherein the first and second spacers provide an open space between the runner and the deck. 27. The sliding device of claim 1, wherein the length of the runner is no longer than a length of the deck. 28. The sliding device of claim 1, wherein the runner has a sidecut. 29. The sliding device of claim 1, wherein the runner does not include a device to attach at least one of a rider's feet to the deck. 30. The sliding device of claim 1, wherein at least one of the nose and tail is upturned. 31. The sliding device of claim 30, wherein the runner is constructed and arranged to allow riding with both the first end forward and the second end forward. 32. In a bi-level sliding device having a deck and a runner that extend in a front to back direction, a spacer, comprising:a first portion constructed and arranged to be attached to the deck; anda second portion constructed and arranged to be attached to a runner and secured to the first portion such that forces applied by a rider on the deck may be transmitted to the runner;wherein one of the first portion and the second portion includes a channel, and at least a portion of the other of the first portion and the second portion is arranged to move in the channel to allow for movement of one of the deck and the runner relative to the other such that the runner may flex at least partially independently of the deck during riding. 33. The spacer of claim 32, wherein the first portion and the second portion are arranged to pivot relative to one another as the part of the one portion moves in the channel. 34. The spacer of claim 33, wherein the channel is curved. 35. The spacer of claim 32, wherein the first portion and the second portion are arranged to pivot relative to one another. 36. The spacer of claim 32, further comprising at least one shaft element. 37. The spacer of claim 36, wherein the at least one shaft element is inserted into a borehole in one of the upper and lower portions. 38. The spacer of claim 32, wherein the channel extends in a linear direction. 39. The spacer of claim 32, wherein the first portion includes the channel, and a part of the second portion is arranged to move in the channel. 40. The spacer of claim 32, further comprising two pivotally attached portions adapted to be connected between one of the first and second portions and one of the deck and runner. 41. The spacer of claim 32, wherein the second portion includes the channel, and a part of the first portion is arranged to move in the channel. 42. The spacer of claim 41, wherein the channel extends in a linear direction. 43. In a bi-level sliding device having a deck and a runner that extend in a front to back direction, a spacer, comprising:an upper portion;a lower portion pivotally connected to the upper portion so that forces applied by a rider on the deck may be transmitted from the upper portion to the lower portion; anda riser element having at least two interlocking pieces that are arranged to slide relative to each other;wherein one of the interlocking pieces in the riser element is adapted to be attached to one of the upper and lower portions and another of the interlocking pieces is adapted to be attached to one of the deck and the runner;the riser element being adapted to allow relative sliding of the deck and runner and the upper and lower portions being adapted to allow relative pivoting of at least portions of the deck and runner. 44. The spacer of claim 43, wherein one of the upper and lower portions comprises at least two protuberances. 45. The spacer of claim 44, wherein the other of the upper and lower portions comprises an insertion piece that is received by the at least two protuberances. 46. The spacer of claim 45, further comprising a shaft that is received in aligned boreholes in the insertion piece and the at least two protuberances. 47. The spacer of claim 46, wherein at least a portion of each of the protuberances on one of the upper and lower portions are adapted to bear on a surface of the other of the upper and lower portions. 48. The spacer of claim 47, wherein the portions of the protuberances adapted to bear on a surface of the other of the upper and lower portions have a cylindrical shape. 49. The spacer of claim 46, wherein at least a portion of the insertion piece on one of the upper and lower portions is adapted to bear on a surface of the other of the upper and lower portions. 50. The spacer of claim 49, wherein the portion of the insertion piece has a cylindrical shape. 51. A method of producing a bi-level sliding device comprising:providing a runner;providing a deck wider than the runner;providing first and second spacers;attaching the first spacer to the runner and the deck; andattaching the second spacer to the runner and the deck at respective runner and deck attachment positions such that a portion of the deck may slide relative to the runner during riding without a change in runner and deck attachment positions relative to the runner and the deck. 52. The method of claim 51, wherein the step of attaching a first spacer comprises:attaching the first spacer to the runner and the deck so that a portion of the deck may pivot relative to the runner. 53. The method of claim 51, wherein the step of attaching a second spacer comprises:attaching the second spacer to the runner and the deck so that a portion of the deck may pivot relative to the runner. 54. A method of producing a bi-level sliding device comprising:providing a runner;providing a deck wider than the runner;providing first and second spacers;attaching the first spacer to the runner and the deck; andattaching the second spacer to the runner and the deck at respective runner and deck attachment positions such that a the deck may pivot relative to the runner in a front to back direction, and such that the deck is restrained from pivoting about an axis running in the front to back direction deck relative to the runner. 55. The method of claim 54, wherein the step of providing a runner and a deck comprises providing the runner and the deck such a length of the runner is at least approximately ⅔ a length of the deck. 56. The method of claim 54, wherein the step of providing a runner and a deck comprises providing the runner and the deck such a ratio of a width of the runner to a width of the deck is between approximately 0.4 and 0.8.