Park Tool CT-5 Mini Chain Tool The Park Tool CT-5 Mini Chain Tool is a compact, shop-quality chain breaker designed for riders who want reliable repairs on the go. Small enough to fit in a saddle bag, jersey pocket, or tool kit, it is perfect for roadside fixes and travel. Its ergonomic handle provides a more comfortable grip than most compact chain tools, making chain repairs easier when you need them most. Built for durability and precision, the CT-5 is compatible with 5-speed through 10-speed bicycle chains. Highlights Compact and portable mini chain tool Ergonomic handle offers better comfort and leverage Ideal for roadside repairs and travel tool kits Durable shop-quality construction Fits easily in saddle bags or jersey pockets Compatible with 5 to 10-speed bicycle chains Specs Model: CT-5 Compatibility: 5-speed to 10-speed chains Use: Chain installation and removal Size: Compact portable design Brand: Park Tool