I run my EB48 at 6.2 lbs ready to race. I could easily get it below 6lbs with some more options, but that is just stock with a light weight electronics setup.

Here is a pic of it at about 6.4lbs. In this pick I have a 6600mah lipo and a 550 4 pole. I'm now running a 4400mah shorty and 540 4 pole.