That isn't the stock arm. It has been streatched 2-5 inches and the top brace cut off. Also the swing arm castle nut is not on. He might have bought this arm from someone else and not had it powdered yet? I hope... Also be careful doing spy work. Looks like you might have photographed yourself. Look at the mirrior in the bottom left of the pic.
Ok, upon closer observation there are about 10 extra links on the chain not yet cut off. Also the kick stand is missing (probably bring cut or replaced when those stock dog bones come off) Can't figure out why the front forks are off unless this was a wrecked bike???