24mm spline drive version of Fit\'s Key Guard sprocket. Made in the USA from CNC\'d 6mm thick 7075 aluminium. This is the new one-piece guarded version of the Key sprocket. Made with input from Ben Lewis to protect you chain during crooks or slide nicely when in a crank arm grind. Features new teeth design for better chain engagement and longer life. Works with 24mm 48 spline spindles only. ###section### Product Specs TYPE: 24mm Spline MATERIAL: Alloy WEIGHT: 154g