Check the listing for details. Theory Verify Sprocket (Black). Color: Black, Condition: New. Listed at 19.99 USD. Theory Verify BMX Sprocket Description: The Theory Verify Sprocket is designed for both BMX and Bike Life riding. Made from 6061 aluminum, the Verify Sprocket is bolt-driven with a 15/16" bore and includes the 19mm and 22mm adapters. Features: 6061 Aluminum Bolt-drive 15/16" bore and includes adapters for 19mm and 22mm spindles Available in multiple color options Specifications: Teeth: 25T & 28T Thickness: 5mm Material: 6061 Aluminum Bore: 15/16" Adapter: 19mm and 22mm Included Color: Black Weight: 2 oz (25T) While you're at it, no better time to go ahead and toss on a new chain. See our selection of chains here. Not sure which sprocket will work on your bike? Confused by all the sizing and gear ratios? Learn all about sprockets and how to install them in our tech help section here. About Us | View Store