Yea put up a radio edit (2/3mins) and upload at 128kbps. Good enough to hear online, but not good enough to play out. Most video upload sites convert the audio to 128kbps anyways.
But, people will still rip it. The Spanish breaks scene is known for some of it's DJs (bedroom types) to rip tracks of BBC Radio1 still with the idents in and play them out.
If someone is going to pirate it, they will. Be happy that your music is good enough that someone wants to pirate it :)