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BOX Cosine Chainring

BOX Cosine Chainring
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*IMPORTANT Please Note: Warehouse products typically arrive within 3 business days. Add items to cart to see fulfillment options. Once order is placed, you'll be notified when products are ready for pickup, have shipped or to arrange delivery. We are currently offering curbside pickup, free bike delivery & free shipping on orders over $50.


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

Part Numbers

Option UPC MPN Store SKU
Black / 42t 639266089872 BX-CR144B42T-BK BOX26257420K
Black / 44t 639266089896 BX-CR144B44T-BK BOX26866289K