OneUp EDC Chainbreaker Tool V2

The OneUp EDC Chainbreaker is compatible with most standard bicycle chains, including 9, 10, 11, and 12-speed drivetrains. It is designed to handle the standard pin widths found on modern mountain and road bikes.

While the tool is optimized to integrate seamlessly into the OneUp EDC storage carrier, it functions as a standalone tool. However, it is quite small, so using it with the EDC system or keeping it in a dedicated kit is recommended to avoid losing it.

This tool is specifically engineered for trail-side emergencies where weight and space are at a premium. While it will certainly break a chain in your garage, a dedicated shop-grade chain tool with a longer handle will offer significantly more leverage and comfort for frequent home maintenance.

The spare bolt is a replacement for the primary driving pin. Chain breakers are high-stress tools, and the pin is the most common point of failure; having a spare ensures you aren't left stranded if the pin snaps during a difficult trail-side repair.

Despite its compact size, the tool is designed to provide sufficient leverage to push out stiff pins on modern chains. It uses a threaded design that allows you to apply force precisely, though it requires a steady hand compared to larger, shop-style tools.