[Tim Delles]

What i would tell you to do is have 2 sprockets attached to your ourput shaft. One that goes to the lead wheel. And then one that leads to the middle wheel. Then from the middle wheel power your back wheel (as you have in the picture.) That way if one of the chains pops in a match you are still life with at minimium of 1 wheel on that side still driving, so you aren't a sitting duck in the middle of the field. But overall its pretty sweet.