If your shifting or braking aren't what they once were, the first thing to try is new cables and housing (they work together as a system). Wear, kinks, corrosion, as well as too-tight bends, can increase friction and decrease the functionality of your brakes and derailers. You don't want that, which is why we only stock stainless steel inner cables and full-liner housing (aka outer cables), which are the best way to increase the replacement interval.

Along with cables and housing, you'll find stops and clamps on this page to install them on your frame cleanly and solidly.

We always choose the most reliable parts to stock for brake and shifting systems, damned be the weight, since your safety and ours on two wheels depends on them.