Bicycles - Irreducibly complex?

No.

In trying to defend the position that the blood clotting cascade is irreducibly complex creationists have tried to discount the evidence that dolphins, puffer fish, and lampreys lack some of the blood components that terrestrial mammals require to clot correctly. Their explanation went like this:

Bicycles have two wheels. Unicycles, having only one wheel, are missing an obvious component found on bicycles. Does this imply that you can remove one wheel from a bicycle and it will still function? Of course not. Try removing a wheel from a bike and you'll quickly see that it requires two wheels to function. The fact that a unicycle lacks certain components of a bicycle does not mean that the bicycle is therefore not irreducibly complex.

Another ID argument for irreducible complexity falls flat or, in this case, pulls a 36km wheelie... Sweet.

~A Puff of Logic~

(Notes: image retrieved from http://www.23mag.com/tricks/guiness.htm)