it was a good first edit. may i ask what camera and lens you were using? looks like a t2i.
some of the shots for sure could be cut down a little bit, the viewer doesn't really need to see him stop after the feature. the colors weren't to bad, but I would for sure have done some color correction. Now, this is a personal opinion, but I dont think the riders name's needed to be there. Especially on this short of an edit. Last but not least, get a few fillers in there. Be creative.