SteepandCheap.com
Shimano Deore SM-CRM66 1x Chainring in Black - Size: 30t
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From SteepandCheap.com
The SM-CRM66 is Shimano's 12-speed direct mount chainring for the Deore M6100 crankset family, built around the Dynamic Chain Engagement+ tooth profile that improves chain pickup and retention on rough and loose terrain. The alternating tooth geometry grips the chain more positively on each revolution, reducing the skipping and chain slap that single-ring setups encounter when the trail gets unpredictable. What Our Gearhead(R) Experts Are Saying:"The direct mount interface makes this a straightforward swap on any M6100-family crank. There's no BCD to match, no spider to source.