Here is my logo for your consideration. I made a logo that uses mud splats, in combination with a hip urban font. I think it will really attract your target audience, and convey the professional yet hip attitude your business brings to the table.
Also, it will look great both on a large-scale (for signs, or even on your own bikes) or small-scale (for business cards, ads, website, etc.)
(This comment references Entry #9)