These are great! Where did you find them?
Thanks to SuperForester Janet, who informed us that the top image is via Kevin Kelly's incredible blog.
"These wooden bicycles are ridden in the Banaue region of the Philippines. During an annual festival celebrating the culture of the regional tribes, wooden bikes are raced by participants in native costume. Notice the cool foot-activated brakes. These photos are from the Flickr pool of Harry Palangchao."
Awesome! Cheers Janet.