The 1x drivetrain delivers a wide range of gearing with the simplicity of a single shifter You get the superior ride quality of carbon without the bank-breaking price IsoSpeed—a decoupler at the seat tube/top tube junction that absorbs fatiguing bumps from the road so you can stay stronger longer On your left, roadie! This fitness bike is more than capable of taking on speedy group road rides You can pair FX Sport with your smartphone and send your ride data to your favorite fitness app when you add DuoTrap S