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.
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Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.
Get free 1-day California shipping with your $50 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: