Ok really starting to like what you have put out there with the moving parts ... I liked the 4 parts in the circle in earlier but also like the sharper knives in #21. I am a fan of using marks in a circular pattern and you really have me considering using the circle instead of the 'o' in sports and using the same style separately around the H2K. I like the font or something similar I used previously at www.h2ksports.com. I would like you to try to place that thick font inside a large circle and attempt to create a little more movement (i do alot of work with cyclists, sprinters, pro athletes etc so a logo that shouts movement
other logos I have liked the way movement was used in the lettering
http://www.newbalance.com/ and www.brine.com
other logos I have liked the circle
http://www.cycleops.com/ (I feel like you are on to something with the circles you are coming up with.... sharper and faster?