Wethepeople designed the Patrol Sprocket based off of classic trails sprockets from the past High-quality, full CNC 6061-T6 alloy construction keeps the minimal looking Patrol Sprocket incredibly strong, while that open design helps to keep the weight right down. The Wethepeople Patrol Sprocket comes with adapters so you can run it on 19mm, 22m or 24mm spindles. ###section### Product Specs TYPE: Bolt On MATERIAL: Alloy WEIGHT: 69g (2.42oz) Colour: Red, Bronze, Black, Polished; Size: 28T, 33T, 25T, 30T