Sugino Gigas 12T Lockring

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For use with Sugino Gigas Track Cog, or any 12T sprocket. It will give the chain more clearance, hence not touching the lockring.

Sugino is founded in 1910 in Nara, Japan. 
A Japanese manufacturer of road and track bicycle components, it manufactures a variety of cycling components, specializing in drivetrain components. Their Sugino 75 components are constantly on top of track cyclists' choice.