Hmmm...all four of my Bottecchia frames are fully chrome plated and then painted over the chrome, even the lower end Special. Of course the steel isn't polished under the paint so the chrome there has a kind of frosted silver finish. I always assumed that was for corrosion resistance. OTOH, my 2004 Bianchi Pista is chrome plated and then clear coated over the chrome so who knows. I love chrome on bikes so frankly I don't care if it adds a bit of weight. I think you'd be hard pressed to measure the difference within the tolerance of a typical scale used to weigh bikes.