It has a mechanical brake that Tom made from just a metal disk welded onto the rear hub, and a brake caliper from a motorcycle brake.
When I was building it, I took a fire extinguisher tank - It all came down to aesthetics. I was looking at my drawings, figuring out where it would go. The steam boiler came from an aesthetic need, form before function, and the fire extinguisher fit what I wanted. So I cut a hole in the bottom of the tank, slipped a pipe in it, welded it on both sides. So that then I had a chamber with a through tube, which became the flame tube. It's not very efficient; there should be more coils in there. But on the other hand, if I crank it up really high, then you get flames shooting out the back of the bike. Which is cool.
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