Which parts of my bike should I modify/upgrade?
For comfort: Start with the parts you physically interact with most, such as the handlebars, grips, saddle, pedals, and shifters.
For convenience: Consider upgrading components like easy wheels, a rear rack, and other accessories designed to make your ride more practical.
For performance and speed: Upgrade your wheelset, groupset, crankset, and other high-performance components to take your riding to the next level.