Wider wheels and tires are faster aerodynamically, and even more at ease besides. S5 arrives specced with 28mm tires but has clearance for up to a 34mm (calculated) tire. Cervelo provides a small best tube bag Together with the bike. As introduced with the Caledonia, Cervelo features its new (optional) https://cervelo-road-bikes68923.win-blog.com/6410028/the-bicycle-rack-diaries