Wider wheels and tires are faster aerodynamically, plus much more at ease to boot. S5 arrives specced with 28mm tires but has clearance for up to a 34mm (measured) tire. The standard of Shimano's Ultegra groupset is very well documented, and its shifting functionality Along with the Microshift bar-close shifters https://cervelo-bike62504.losblogos.com/26488005/a-secret-weapon-for-bicycle-stores