The CSG 10605 trackless bi-folding speed gate consists of a post onto which a bi-folding leaf is attached. Unlike other bi-folding gate systems, this does not require a track either in the ground or overhead to fold the leaf, but uses a unique folding system. Operating speed from 6 seconds depending on site conditions, gate configurations etc, rated for continuous operation- 100% duty cycle. The post hung section of the bi-fold leaf is driven by a unique innovation, consisting of a motor drive unit connected to a crank arm assembly which locks the gate in both open and closed portions. The gate leaf sections are fully welded assemblies.