I just bought a new old stock 2016 Fuji SL 2.5 with Shimano 105 at the local bike shop. Compared with my 2004 Trek 5200 with Ultegra, the big difference I feel is the frame stiffness and liveliness. Both bikes weighed about the same I think. Seems like the new frame is layered thinner with stronger, directional carbon.
It’s definitely not a scientific analysis or even apples to apples. Different frame style and geometry. The Fuji is a compact frame. The Fuji has wider rims with 25mm tires too. But I’m digging the feel. I was riding an aluminum Fuji Roubaix 1.3 for a few years in the interim between bikes.
