420-37T Motorcycle Rear Sprocket - Durable Steel Chain Drive Component #3693556 (License: Personal Use)

This is a 420-37T motorcycle rear sprocket made from hardened steel, designed for use with 420-series drive chains and featuring 37 teeth for optimal gear ratio tuning. The sprocket includes five symmetrical cutout windows to reduce rotational mass while maintaining structural integrity, along with four mounting bolt holes spaced evenly around the hub. Its matte black finish offers corrosion resistance and a clean aesthetic for custom or stock builds.

Used on product listing pages for motorcycle parts retailers, repair guides, and e-commerce sites selling drivetrain components; matches user intent for purchasing, comparing, or identifying replacement sprockets for dirt bikes, pit bikes, or small-displacement street motorcycles.