Seller notes

Sunstar 13-Teeth 520 Chain Size Front Countershaft Sprocket Type: Sprocket Size: 520 Teeth: 13 Position: Front Pitch: 520 Material: Steel Sold as: Each Constructed of high-quality, aerospace grade 7075 T-6 aluminumComputer-designed weight reduction holes for lightnessExclusive tooth-valley design provides 24% better chain contact area for the best power transfer possibleFinished with a clear or black hard anodized coating that adds durability and a superb finishGrooves added at bottom of tooth a...

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