These have been around for ten years or so, but I just found then the other day… Cycle Karts. A modern twist on the original 1910-20s era cycle cars. This should probably go into the Projects forum, but since I’m not building one (yet) it isn’t technically a project. So this seemed like a better place.
Very cool, I’ve been following this guy’s blog on his cycle kart construction for the last couple of months http://cyclekarting.com/
I’ve been toying around with the idea of building one, sketching ideas out from time to time, but so far I haven’t found any detailed plans or walk-through on the drive-train construction which is the part that I’d been the least comfortable hacking together.