Hey guys,
I have an 05.  I noticed the bolt that holds the brake line in place on the front fork has gone missing.  Does anybody know what size bolt/washer/nut needed to replace.  Is this a safety issue, I've been riding around with it for a little while. 

No idea what size bolt. I rode mine around without it for 6 months or so. Over a long time it might cause more strain on the line, but you should replace it every several years anyways. If it bothers you, ride over to the hardware store and try a few out. That is how i replaced damn near every bolt on my bike.

M6 x 1.0 threads
Whatever length you can get is fine.

And maybe a drop of blue loctite this time?

Zip tie! hahahaha

had that missing on my old bike as well