Handmade from imported Brazilian bamboo, our second fixie. Third model: full lightweight race bike with gears that I am going to use in the collegiate conference in just over two weeks!
Also, check out these excellent posts about bamboo, our bikes, and our company (written by Ron): Part 1, Part 2, and Part 3.
I will make sure to post updates about my racing bike in the next few days . . . we are taking a lot of time with it to make it PERFECT! Currently the tubes are all mitered and we are CNC machining the dropouts while we wait for a nice new role of intermediate-modulus 12k unidirectional carbon fiber to arrive with a bunch of black-anodized aluminum cable stops and other small parts needed to make a road bike. Just to make you salivate, the bike's theme will be GOLD . . .
Zen Cycles rio is the second frame we have made, and we are experimenting with different finishes (and the company name, as well!)
Subtle downtube and toptube graphics really look nice with the blonde bamboo. Our wrapping techniques are improving with each joint, and some new carbon fiber is coming in that should really optimize weight and strength. We are also looking in to vacuum-bagging to increase the carbon-to-epoxy ratio and make the joints look super-smooth . . .