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Sunlite's Single Speed Chain Guide lets you turn most geared bikes into single speeds. It mounts to your derailleur hanger and takes up the chain slack for smooth, quite and chain-drop-free riding. It's made of aluminum and steel for excellent performance and durability. And it also allows adjusting the chain line to perfection for the smoothest-running drivetrain.

- DT Swiss cartridge bearings - Sold in pairs

• Aluminum clamp • Built-in rear rack mount