It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
u have to have the top and bottom cogs geared together, e.g. through a chain on the back side.
Originally posted by PhoenixOD
Why is there no video of this working if its so simple?