Abstract: An elongated brace is provided having a first clamp pivotally supported from one end thereof and adapted to be semi-permanently attached to a frame bar of a bicycle and a second clamp is pivotally attached to the other end of the brace and may be releasably locked in clamped engagement with the aforementioned bicycle frame bar or a corresponding frame bar of an adjacent bicycle for support of the first and second mentioned bicycles from each other.

Abstract: A warning device visually enhances the signalling of a dangerous situation such as an approaching train at a railroad crossing. The warning device includes oppositely rotating rims to which light reflecting discs are attached in surrounding relation to hubs fixed to the arms of a frame extending laterally from a vertical support post. Fixed light emitting surfaces are mounted on the hub facing opposite directions.