The noticeably lighter unserialised pair I had, I only wish i'd weighed at the time. I remember at the time switching from this particular pair in hand, to the serialised JB frame (both bare frames) and the difference was vast which was very surprising. I knew it felt lighter initially with handling so many Juliets over the years, but on comparison felt like 2/3 of the weight, if that. I only wish i'd held onto that one.