A vertical side-piece in a sled.
1851. It was astonishing to see how he had gnawed the rave of the sled. (Note) the railing.John S. Springer, Forest Life, p. 106 (N.Y.)
1886. The rave bolts [in a bob sleigh] extend upward from the runners in front and rear of the knees, and the raves rest between their ends on the bottom of the recess.Scientific American, liv. 130/2 (Feb. 27). (N.E.D.)