Some of you may remember several months ago when I posted about Greg Kolodziejzyk’s homemade velomobile. His self described goal with the bike was to create the “rocking-est human powered hot rod ever!” Last week, Treehugger posted a picture of the full carbon fiber fairing recumbent that Greg will be using later this month in an attempt to break the 24 hour human powered record (just set recently by Fast Freddy Markham). This bike called “Critical Power” was designed by Ben Eadie using Solid Works software. The design was tested as it progressed in a virtual wind tunnel using COSMOSFloWorks fluid dynamics analysis software. We will see if the design work pays off when “Critical Power” hits the track in a week or so. Greg’s new bullet bike may not be as “rockin” as the yellow one, but it certainly looks fast. Good luck with the record attempt Greg.