evo.com | Topeak Multi-Tools > The Topeak Plug'n Chain Tool has a flared base for good reason: it's designed to hide in your handlebar for on-the-go use. This compact chain tool is compatible with single and multi-speed chain tools up to 13 speeds, meaning you can be prepared when the next mechanical strikes. Hardened Steel / Engineering Grade Polymer Mount Handlebar Ends 10.8 x 2.5 x 2.5 cm / 4.25" x 1" x 1" CrMo Steel Chain Tool* and Chain Hook Compatibility PLUG 'n CHAIN TOOL was designed to be used on handlebars with round ends only and should not be used on bars with other shaped ends. | Topeak Plug'n Chain Tool 2024 in Black | Polyester