pic: aces high drive base concept

[sdcantrell56]

I like it for a simple drivetrain. A couple things to think of. How are you actually going to tension the chain? I see guides but nothing adjustable. Also it might be easier to drop the transmission down between 2 of the wheels and just have 3 separate chain runs. It would lower the Center of gravity as well as increase redundancy a bit. This design doesnt look like you're really using the 80-20 adjustability so why not just use plain aluminum tube? You would save weight and potential failure points from loosening fasteners if you weld it