Shimano Single Freewheel Sprocket SF-1200 20T

The Shimano SF-1200 is a high-quality single-speed freewheel designed for standard threaded hubs. Constructed from hardened alloy steel, it offers exceptional longevity and resistance to wear, making it a reliable choice for road, hybrid, or mountain bike single-speed conversions.

This 20T version is compatible with wider 1/2″ x 1/8″ chains, ensuring a robust drivetrain setup. With its standard English threading and smooth internal ratcheting mechanism, the SF-1200 provides the consistent performance and durability that Shimano is known for.

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