Hey, I run a lot, and bike a fair amount too (duathlons/ centuries/ general riding). I get the squeeky knee, and the knee pop sometimes too. I take glucossimine every day (for several years now). It takes about a month to get into your system, but it works well. Re-builds cartilidge. I hate taking vitimis (though I do take a multi), but I swear by this stuff. If you haven't see it before, you can get it at GNC or even Wal-Mart. If the knee thing is a carilidge issue, this might help. Also, try stretching before and after your rides, a lot of us forget to do that...