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> Parts > Chainrings > BOX > Cosine Chainring
BOX Cosine Chainring

BOX Cosine Chainring

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Product Details

BOX Cosine Chainring

- CNC-machined 6061-T6 aluminum with rounded tooth profile to reduce chain wear

  • Part Numbers close open

    Option Barcode Manufacturer's Part Number Vendor Number
    Black / 38t 639266089834 BX-CR144B38T-BK JBI-210907
    Black / 42t 639266089872 BX-CR144B42T-BK JBI-210911
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