Abstract: A resilient spine having an arched shape attaches to the under surface of a skateboard and carries truck assemblies at each end. The spine itself is biased away from the deck, but compressible in response to rider weight to conform to and against the undersurface of the skateboard deck. In use, the spine allows normal operation of the skateboard, but provides enhanced performance as the rider lifts or reduces weight applied to the skateboard deck thereby allowing the spine to uncompress and withdraw from the undersurface of the skateboard deck.