Abstract: A rowing exercise machine has a frame including a base portion and an upstanding portion. A seat is mounted intermediate the ends of the upstanding portion on the rearward side and a chest support is mounted thereabove. An upstanding effort arm is pivotally attached adjacent its lower end to the base portion of the frame at a location spaced forwardly of the upstanding portion. A handle member has a forward end pivotally attached adjacent the upper end of the effort arm and extends generally rearwardly towards the chest support. A weight bar is pivotally attached adjacent its rearward end to the upstanding portion of the frame and extends forwardly beyond the effort arm with a mount for weights adjacent its forward end. A tie rod is pivotally attached adjacent one end intermediate the effort arm and pivotally attached adjacent its other end proximate the rearward end of the weight bar.

Abstract: An armrest assembly adapted for mounting on the back portion of a motorcycle seat includes armrests that are pivotably mounted for pivoting about horizontal and vertical axes. Pivoting about either axis is possible from the normal position, and pivoting can be effected merely by applying a moment to the armrest about the desired axis. As a result, rapid dismounting during an emergency is readily permitted.