Box 8 Prong cassette lock ring

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Extruded and CNC-machined from 6061-T6 aluminum, Box One Hub Lock Rings are lightweight and beautiful. Replace that old steel lock ring you have now and save some weight while addi ng style and color to your whip. Available in anodized red, blue, gold and black to fit Shimano-compatible cassette bodies. Keep in mind, aluminum is softer than steel, so use care when installing one of these lock rings. Lightweight Upgrade to a Steel LockringMultiple Tool Design for Convenience Material: 6061-T6 AluminumProcess: Extruded & CNC MachinedFinish: AnodizedSize/Compatibility:• Thread Pitch: 1.37 Inch x 24 TPI External• Tool: Park Tools BBT-9 (or similar 44mm 16 notch BB tools)• Outer Diameter: 43.6mmWeight: 7 g / 0.25 oz Show more