Standard CNC'd Aluminum Chainring
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* 74/110mm Bolt-Circle Diameter * 24T - 28T: 7075 Aluminum * 34T- 48T: 6061 Aluminum
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Compact CNC'd Aluminum Chainrings
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* 58/94mm Bolt-Circle Diameter * 20T & 22T 7075 Aluminum * All Others 6061 Aluminum
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Road CNC'd Chainrings
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* 130mm Bolt-Circle Diameter * 7075 Aluminum
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