Kink Spline-Drive Astro Sprocket
The Astro sprocket is a true mix of form and function. Using heat-treated 4130 chromoly steel enables this sprocket to use thin spoke like patterns which create the unique look. The design itself inspired by the structure of an atom, has increased strength over similar spoke style sprockets due to the intersecting “orbits” or spokes. The Astro sprocket comes in a variety of sizes, and both bolt drive or spline drive options.
Heat Treated 4130 Chromoly Steel
Only works with 19mm 48 spline cranks