Great motorcycle. The kickstand is cool, and I like the greyness.
A few things that could be improved: The 1x2 dk grey tile could be replaced by a printed one that has a few dials and such; I'm not aware of one that would work perfectly, but this
might work pretty well, especially with the yellow dot at the top. Secondly, the minifig doesn't look very comfortable, but I don't know what to do about that.
One last thing. What set(s) are those wheels from? Thanks,