RE: Cen Matrix Tr Arena
My CEN Arena weighted in at 9.8 lbs with no fuel. My Race REVO weights 9.6 lbs, my Brushless REVO weights 10.5 lbs (with batteries, 9.8 w/o) and I gave the Kyosho US Sport to my bro so I don't know how heavy it is, but it felt pretty lite, probably in the 8.5 lbs range.