Shimano's SM-CRM81 chainring features a new tooth profile with Dynamic Chain Engagement. Their new 1x proprietary chain retention technology prevents skips and drops, and lengthens a chain's lifetime. The combination of wide steel teethe with special hooked teeth improve chain retention and lifespan by up to 150%, even on rough terrain.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Get free 1-day California shipping with your $60 purchase today, on most orders. Please note this offer is only available to physical shipping addresses in California(no PO Boxes), and oversize charges still apply on some heavy/large itemsDue to manufacturer restrictions, this product cannot be shipped to the following locations: