At his core, Gears is just a poor repaint of the 1992 Barricade figure. But, the green helmet and all blue body make for an effective blend with the rest of the 1994 Star Brigade figures. The Gears figure is somewhat obscure and rather hard to find these days. He's not a figure that's really necessary. He's also not a figure that has a lot of content available. Here's the best I could find of Gears from around the web.
Gears by Slipstream80
Gears Pre-Production at YoJoe.com
Gears at Half The Battle
Gears by ToneGunsRevisited
Gears at 3DJoes.com