．Chainring - 53/39T, 53/42T, 52/39T, 55/42T, 56/44T, 54/42T．BCD - 130mm．Chainring - 50/34T, 52/36T, 53/39T．BCD - 110mm．Material - 7075 ．Finish - Black Anodized
．Chainring - 50/34T, 52/36T, 53/39T．BCD - 110mm for Shimano type．Material - 7075 ．Finish - Black Anodized
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