Originally Posted by surak

That 2017 Roubaix frame will have weird SCS rear axle spacing, I'd avoid that year. I'm happy with my 2019 model with FS1. I notice the CG-R seatpost the most when it's on an indoor trainer compared to a regular carbon seatpost on a different, alloy bike that I swap between. The Roubaix is so much smoother.