Your bike has a lot of bolts. When one starts working itself loose, it could ruin your ride. The Fabric Chamber is an elegant tool, in both look and function, that can keep those bolts sung. The cylinder-shaped tool holds six double-sided bits – which include hex, Phillips, slot and Torx – as well as an additional 8-mm hex “over-bit.” You can fit each bit into the Chamber’s head to get leverage on a bolt. The tool comes in two models: one with a fixed head and one with a ratcheting head. It’s 162 g and slips nicely into one of your back jersey pockets.