My beam squeaks and creaks. Softride has cut a lot of weight off their bikes in the past few years. A Classic R1 with Ultegra weighs 19.5lbs and Rockets are almost a pound less. The myriad of other benefits offered by the design far outweigh such a minor weight difference. Ride one to find out.
Weight is the easiest concept to initially feel when looking at a bicycle.
However, weight is only a very small part of what makes a bike ride well. A bicycle without comfort or stiffness will ride poorly no matter how light it might be. Softride is not the lightest, but they are certainly not heavy and offer many other advantages that no other design offers. Ride one to find out. I don't want to lose energy.