[s_forbes]

Very cool chassis design! The four speed transmissions look really neat, what kind of shifting mechanism are you guys using? I wasn't aware of any issues with the AM dog shifting design, but I'd like to see what you came up with.

The chain tensioning (rather, the lack of it) is cool, too. How often did you have to change out chains on your 08 robot, and how loose did they get before you changed them? It seems like a great set up if they don't loosen up too incredibly fast. Also, are those custom one piece sprockets on the wheels?