The frames are way lighter and stiffer, but I believe the components actually got heavier? Case in point my 1988 54cm Schwinn Premis weighed 23.3 pounds. It was bone stock...Tenax frame. Cyclone 7000 indexed with DT shifters, wide suede saddle, etc. My 1985 60cm Super Sport with 9 speed Tiagra and a Terry Ti Fly saddle weighs 24.8 pounds? Frame is Tenax, the only real difference is components/rims and 6 centimeters of frame steel.,,,,BD