Allen, I like the lines on that frame; however, I don't think bamboo is the best of material. I can understand the original concept of building bikes from low cost renewable and local resources for third world countries, but as your mishap underscores bamboo is a brittle material and you were riding in relatively gentle conditions.

I'd love to see that design in a more conventional frame material. You might even have a MARKETABLE frame and design if it were steel..