Somewhere there is a pile of lights, rear sub-frame with seat and passenger pegs, a bunch of lights and gage wire relays switches and stuff, a massive pile of front brake rotors calipers hydraulic lines master cylinder and lever, wiring harness, and if they ran the exhaust through the V there may be a missing charging system (you only need a little battery power to run the bike around in a circle for a few laps. And yes the stock exhaust with it's cat con do weight a bit more. And a lighter weight 2 gallon tank would be plenty.