Park Tool CT-5 Mini Chain Tool The Park Tool CT-5 Mini Chain Brute Chain Tool is a compact, yet powerful tool, expertly designed for on-the-go bicycle chain maintenance. With its shop-quality performance, this lightweight tool is ideal for any derailleur chain, ensuring a seamless chain removal and installation process. Despite weighing a mere 77 grams, the CT-5 houses a strong, replaceable pin and a unique V-shaped handle, providing an easy grip and superior functionality. It is also equipped with a shelf for loosening tight links, further enhancing its utility. Compact and portable, perfect for on-the-go bicycle maintenance Works on any derailleur chain Features a strong, replaceable pin for superior durability Unique V-shaped handle for easy grip Included shelf for loosening tight links