CRM66 Deore Chainring

Shimano

CRM66 Deore Chainring

$50.00
SKU: ESMCRM66A0
Only 2 units left
Size:30T
Shipping
Free Shipping $50+
Ships within 1 business day
Store Pickup
Available Today
Only 2 available, ready in 4 hours
  • U.S. Shipping Only: Ships within the United States

Free Shipping $50+

Parts, apparel, and accessories

Free shipping on orders over $50 within the lower 48

Complete Bikes

Free Pro Pack Shipping on bikes over $3,500

Wheels & Wheelsets

Free Wheel Pro Pack Shipping

AK, HI, U.S. Territories & International

Shipping rates calculated at checkout

For complete details, including exclusions and shipping destinations, visit our Shipping Information page.

Free Shipping $50+

Parts, apparel, and accessories

Free shipping on orders over $50 within the lower 48

Complete Bikes

Free Pro Pack Shipping on bikes over $3,500

Wheels & Wheelsets

Free Wheel Pro Pack Shipping

AK, HI, U.S. Territories & International

Shipping rates calculated at checkout

For complete details, including exclusions and shipping destinations, visit our Shipping Information page.

Earn Rewards

Every ride deserves a little extra. With Fanatik Rewards, you'll earn points on qualifying purchases and redeem them for savings on future orders. It's our way of saying thanks for choosing Fanatik.

Join for Free

Create a Fanatik account and you're automatically enrolled

Earn While You Shop

Earn points on qualifying purchases online and in-store

Redeem for Future Savings

Use your points toward future gear, upgrades, and trail essentials

Unlock Higher Reward Tiers

Spend more and earn points faster with Bronze, Silver, and Gold status

For complete program details, earning rates, and redemption information, visit our Rewards page.

Earn Rewards

Every ride deserves a little extra. With Fanatik Rewards, you'll earn points on qualifying purchases and redeem them for savings on future orders. It's our way of saying thanks for choosing Fanatik.

Join for Free

Create a Fanatik account and you're automatically enrolled

Earn While You Shop

Earn points on qualifying purchases online and in-store

Redeem for Future Savings

Use your points toward future gear, upgrades, and trail essentials

Unlock Higher Reward Tiers

Spend more and earn points faster with Bronze, Silver, and Gold status

For complete program details, earning rates, and redemption information, visit our Rewards page.

45-day Returns

We want you to be happy with your purchase. Most new and unused products can be returned within 45 days of purchase for a refund.

Eligible Returns
  • Most new and unused products
  • Original packaging and accessories included
  • Return requested within 45 days
Exclusions Apply
  • Final Sale and Outlet products
  • Custom-built bikes and wheel builds
  • Used products
  • International orders


For complete return details and instructions, visit our Returns page.

45-day Returns

We want you to be happy with your purchase. Most new and unused products can be returned within 45 days of purchase for a refund.

Eligible Returns
  • Most new and unused products
  • Original packaging and accessories included
  • Return requested within 45 days
Exclusions Apply
  • Final Sale and Outlet products
  • Custom-built bikes and wheel builds
  • Used products
  • International orders


For complete return details and instructions, visit our Returns page.

Price Match

Shop with confidence knowing you're getting a competitive price. If you find the exact same product advertised for less by another authorized U.S. retailer, submit a price match request and we'll review it.

Price Match
  • Identical product must be in stock and available for purchase
  • Competitor must be a U.S. based retailer
  • Product details and advertised price must be verifiable
Price Protection
  • If we lower our price within 30 days of your purchase, you may be eligible for Fanatik store credit
  • The same model, size, and color must be in stock at the lower price

For complete eligibility requirements and exclusions, visit our Price Match & Protection page.

Price Match

Shop with confidence knowing you're getting a competitive price. If you find the exact same product advertised for less by another authorized U.S. retailer, submit a price match request and we'll review it.

Price Match
  • Identical product must be in stock and available for purchase
  • Competitor must be a U.S. based retailer
  • Product details and advertised price must be verifiable
Price Protection
  • If we lower our price within 30 days of your purchase, you may be eligible for Fanatik store credit
  • The same model, size, and color must be in stock at the lower price

For complete eligibility requirements and exclusions, visit our Price Match & Protection page.

Highlights

  • DYNAMIC CHAIN ENGAGEMENT+ narrow-wide tooth profile improves chain retention
  • Durable steel construction for long service life
  • Available in 30T or 32T to suit different terrain and riding preferences

Description

The Shimano Deore SM-CRM66 is a durable direct mount chainring engineered to deliver dependable performance for modern 1x12 mountain bike drivetrains. Designed specifically for Shimano FC-M6200 and MT620 cranksets, it combines exceptional chain retention with long-lasting durability for everything from everyday trail rides to demanding e-MTB adventures.

At the heart of the SM-CRM66 is Shimano's DYNAMIC CHAIN ENGAGEMENT+ technology. The optimized narrow-wide tooth profile securely holds the chain in place over rough terrain while promoting smooth, consistent engagement and efficient power transfer. The result is improved chain retention and confidence when the trail gets technical.

Constructed from high-strength steel, the SM-CRM66 is built to withstand heavy use and deliver outstanding longevity, making it an excellent choice for riders who prioritize reliability and low maintenance.

Available in 30T and 32T configurations, the SM-CRM66 lets you tailor your gearing to your riding style, whether you're looking for easier climbing or more speed on fast, flowing trails.