Due to the shape and form, a wooden pallet is perfect material to be converted into a simple and cost effective bike rack. The slats of the pallet are spaced apart right to hold a bike wheel. With a little extra work, you can convert a pallet into a bike rack.
In this example, Gillian Haas at the Haas Machine shows you how to make a portable pallet bike rack easily. Check it out in the following link. And watch the video for another great example.