The Specialized Top Cap Chain Tool allows you to be always prepared for when a problem occurs with your chain when your out on the trails, with an integrated tool system in your steerer tubes top cap! The choice between Carbon and Alloy enables you to find the correct version for your bikes set-up, the alloy version includes the tool required to properly set your star nut, while the carbon version inlucdes an expander plug for your carbon steerer.  Adding an insanely low weight of 25 grams over a traditional compression cap you can carry out maintenance on your 8, 9, 10 or 11-speed chain on trail with ease! Specialized Top Cap Chain Tool Features Works with any 1-1/8 inch steerer tube with 32mm of available depth Adds only 25 grams over a traditional compression cap Compatible with 8, 9, 10, and 11-speed chains Holds quick links (not included) Alloy version includes tool to properly set your star nut (star nut not included) Carbon version includes expander plug for your carbon steerer Specialized SWAT technology Ever find yourself struggling to find places to store those required items for riding out on the trails? Storage, water, air and tools (SWAT) is the integrated rider solution to your problem. By developing a system that holds all your necessities securely in sleek, clean and aerodynamic positions instead of being forced to cable tie them to your tubes or carry a heavy backpack!