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SHIMANO ISMCRM86A2 Deore Xt Mount Chainring SM-CRM86 1X 32T

Ismcrm86a2 Shimano Deore Xt Sm-crm86 1x Direct Mount Chainring 32t Read Condition

( Brand: Shimano ), ( Manufacturer Part Number: ISMCRM86A2 ), ( Part Type: Mount ), ( Compatible Brand: For Shimano ), ( Color: Black ), ( Compatible Model: Xt ), ( Mounting Type: Shimano Direct Mount ), ( Number Of Teeth: 32 Tooth ), ( Compatible Bike Type: Mountain Bike ), ( Country Of Origin: Japan )

Review SHIMANO Deore Xt 1x Direct Mount Chainring 32t Read Condition

The **Shimano ISM-CRM86A2 Deore XT SM-CRM86 1x Mount Chainring (32T)** is a precision-engineered component designed to elevate the performance and efficiency of modern single-chainring setups, catering to both competitive cyclists and discerning riders seeking reliability and durability. Part of Shimano s advanced **SM-CRM (Single Chainring Mechanical)** series, this chainring is meticulously crafted to deliver seamless engagement with the drivetrain, minimizing chain drop and maximizing power transfer critical factors for riders who demand consistency across a wide range of terrains, from aggressive climbs to high-speed descents. The **XT-grade construction** ensures a robust build, featuring a **32-tooth configuration** optimized for aggressive, low-gear climbing while maintaining versatility for efficient pedaling in varied conditions. Engineered with **Shimano s proprietary ISM (Intelligent Single Chainring Mounting)** technology, this chainring integrates flawlessly with the **Deore XT 1x drivetrain**, offering a streamlined, compact design that reduces rotational mass and enhances pedal efficiency without compromising durability. The **A2 variant** signifies a slightly refined version, often featuring subtle improvements in material composition or manufacturing precision, ensuring longevity even under the most demanding conditions. Whether paired with a gravel bike, a hardtail mountain bike, or a versatile hybrid, this chainring exemplifies Shimano s commitment to innovation, blending performance-driven engineering with practicality for riders who refuse to compromise on quality. Its **durable aluminum construction** resists wear, while the **optimized tooth profile** minimizes chain wear and maximizes chain retention, reducing the frequency of adjustments and maintenance. Ideal for riders who prioritize a **smooth, predictable shifting experience** and the confidence of a drivetrain built to last, the **Shimano ISM-CRM86A2 Deore XT 32T chainring** is a standout choice for those who demand nothing less than excellence in their cycling equipment.

The Shimano ISM-CRM86A2 (Deore XT SM-CRM86 1x) is a compact road crankset designed for 1x drivetrain systems, offering a balance of performance and affordability. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

### Pros:

1. **Compact Chainring Design**: The 32-tooth chainring is part of Shimano s compact road crankset series, which is optimized for climbing efficiency. The smaller chainring reduces the gearing ratio, making it easier to pedal uphill while still providing adequate speed on flat terrain. This is particularly useful for riders who prioritize climbing performance or ride in hilly areas.

2. **Compatibility with 1x Drivetrains**: The SM-CRM86 is designed specifically for 1x setups, which are popular among road cyclists for their simplicity and reduced maintenance. The single chainring eliminates the need for shifting between front and rear derailleurs, streamlining the drivetrain and reducing the risk of chain drops or misalignment.

3. **Durability and Reliability**: Shimano s Deore XT series is known for its robust build quality and durability. The crankset is designed to handle the stresses of regular riding, including rough terrain or aggressive pedaling, without frequent wear or failure. This makes it a reliable choice for both casual and serious cyclists.

4. **Lightweight Construction**: The crankset is constructed using aluminum, which keeps the weight relatively low compared to steel cranksets. While not as light as carbon fiber options, it offers a good balance between weight and strength for the price point.

5. **Compatibility with Shimano Components**: The ISM-CRM86A2 is designed to work seamlessly with other Shimano 1x drivetrain components, such as the Deore XT or SLX rear derailleurs and cassettes. This ensures smooth shifting and compatibility with other parts in the same series, making it easier to build a cohesive drivetrain.

6. **Affordable Price Point**: Compared to higher-end Shimano cranksets (e.g., Ultegra or Dura-Ace), the Deore XT series offers excellent value for money. It provides many of the same features and performance benefits without the premium price tag, making it accessible to a wider range of riders.

7. **Easy Installation and Maintenance**: Shimano components are widely available and relatively easy to install and maintain. The crankset s design is straightforward, and tools required for installation (e.g., chain whip, torque wrench) are common and inexpensive. This makes it a practical choice for riders who prefer to handle their own bike maintenance.

8. **Versatility**: While optimized for climbing, the 32-tooth chainring still provides adequate speed for most road riding conditions. Riders who primarily ride on flat terrain or in mixed conditions will find that the compact setup is versatile enough to handle their needs without feeling too restrictive.

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### Cons:

1. **Limited Gear Range**: The compact chainring (32 teeth) is not ideal for riders who frequently tackle very steep climbs or require a lower gear for technical or off-road riding. While it improves climbing efficiency, it may feel too high for some riders in extreme uphill situations, especially if they are not already in good shape or are carrying heavy loads (e.g., touring or commuting with panniers).

2. **Less Suitable for Flat or Fast Riding**: For riders who prioritize speed on flat terrain or prefer a more aggressive gearing setup, the 32-tooth chainring may feel too small. The lack of a larger chainring means there s no option for a lower gear ratio on flat sections, which could make sustained high-speed riding less comfortable or efficient.

3. **Single Chainring Limitations**: While 1x drivetrains are convenient, they lack the flexibility of a double or triple chainring setup. Riders who enjoy varying their gearing for different conditions (e.g., switching between a smaller chainring for climbs and a larger one for flats) will find the 1x setup limiting. However, this is a trade-off for simplicity, so it depends on the rider s preferences.

4. **Chain Wear**: Single-chainring setups can sometimes experience more chain wear due to the constant use of the same chainring. While Shimano s components are durable, the chain may need more frequent replacement compared to a double or triple setup where the chainring wear is distributed across multiple sprockets.

5. **Less Common in High-End Setups**: If you re building a high-end road bike or plan to upgrade components in the future, a compact crankset like this may not align with the gearing preferences of more aggressive or performance-oriented riders. Higher-end cranksets (e.g., Ultegra or Dura-Ace) often include larger chainrings (e.g., 34 or 36 teeth) for better flat-road performance.

6. **Potential for Chain Line Issues**: In some cases, especially with wider tires or aggressive tire setups, the chain line (alignment of the chain with the chainring and cassette) may not be optimal. This can lead to chain skipping or reduced efficiency. However, this is more of a setup issue than a flaw in the crankset itself.

7. **Limited Customization**: Unlike double or triple chainring setups, where you can choose different chainring sizes, the compact crankset offers little room for customization. Riders who want to experiment with gearing ratios are limited to the 32-tooth option.

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### Conclusion:

The Shimano ISM-CRM86A2 (Deore XT SM-CRM86 1x 32t) is an excellent choice for riders who prioritize climbing efficiency, simplicity, and durability in a 1x drivetrain setup. Its compact chainring design makes it ideal for hilly or mountainous terrain, while its compatibility with Shimano s 1x components ensures smooth shifting and easy maintenance. The crankset offers strong value for the price, making it accessible to a broad range of riders without sacrificing performance.

However, it may not be the best fit for riders who primarily ride on flat terrain, require a wider gear range, or prefer the flexibility of a double or triple chainring setup. Additionally, those who frequently tackle very steep climbs or need a lower gear for technical riding might find the 32-tooth chainring insufficient. Ultimately, the suitability of this crankset depends on your riding style, terrain, and personal preferences.

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### Recommendation: **Buy the Shimano ISM-CRM86A2 if:**

- You ride primarily in hilly or mountainous terrain and prioritize climbing efficiency.

- You prefer the simplicity and reduced maintenance of a 1x drivetrain.

- You want a durable, reliable crankset at an affordable price point.

- You are building a bike with other Shimano Deore XT or SLX components and want a cohesive drivetrain.

- You value a lightweight yet strong aluminum crankset without the cost of carbon fiber.

**Consider alternatives if:**

- You ride mostly on flat terrain and need a larger chainring for better speed.

- You frequently tackle very steep climbs or require a lower gear for technical riding.

- You prefer the flexibility of a double or triple chainring setup for varied terrain.

- You plan to upgrade to higher-end components in the future and want a crankset that aligns with more aggressive gearing (e.g., Ultegra or Dura-Ace).

For most riders who prioritize climbing performance and simplicity, the Shimano ISM-CRM86A2 is a solid and practical choice. It strikes a good balance between performance, durability, and affordability, making it a worthwhile investment for the right rider.

Details:

I filed down the tooth slightly so it would seat correctly inside chain once again and was working OK before had a replacement sent to me. Shimano Deore XT SM-CRM86 1x Direct Mount Chainring 32t, One tooth as pictured had impact damage and mushroomed slightly.

part #: ismcrm86a2 price

  • $86.80

specifications ribicycl:

  • brand: Shimano
  • mpn: Ismcrm86a2
  • part type: Mount
  • compatible brand: For Shimano
  • color: Black
  • compatible model: Xt
  • mounting type: Shimano Direct Mount
  • number of teeth: 32 Tooth
  • compatible bike type: Mountain Bike
  • country of origin: Japan

payments ribicycl:

  • other
  • wallet: Apple-pay
  • credit card: Mastercard

offer ribicycl:

  • options: Ship-to-home
  • started: June 1, 2026
  • availability: In Stock
  • sold: 0
  • best offers: True
  • quantity: 1

general ribicycl:

  • Cycling > Bicycle Components Parts > Chainrings BMX Sprockets
  • condition: For parts or not working

seller ribicycl:

  • # reviews: 761
  • rating: 100.0%
  • city: Flagstaff, Arizona

shipping ribicycl:

  • class: Standard
  • cost: $5.89
  • type: Calculated
  • transit: 3-7 Days
  • carrier: USPS
  • service: USPS Ground Advantage

returns ribicycl:

  • policy: No Returns
part type: mount, compatible brand: for shimano, compatible model: xt, mounting type: shimano direct mount, number of teeth: 32 tooth, compatible bike type: mountain bike, country of origin: japan,
category: sporting goods > cycling > bicycle components parts > chainrings bmx sprockets, color: black, sku: 18190107645045752,
Shimano ISMCRM86A2 Is Similar To:
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5 offers $86.80–$86.80 USD
  • New. Offer #1 priced at $86.80 + $0.00 shipping estimate = $86.80* total. DRIVETRAIN SPEEDS12. Compatibility with all Deore XT drivetrain and rider needs.FREE SHIPPING
  • New. Offer #2 priced at $86.80 + $0.00 shipping estimate = $86.80* total. MANUFACTURER PART NUMBERIsmcrm86a4 TOOTH COUNT34.FREE SHIPPING
  • New. Offer #3 priced at $86.80 + $0.00 shipping estimate = $86.80* total. MANUFACTURER PART NUMBERIsmcrm86a6 TOOTH COUNT36.FREE SHIPPING
  • New. Offer #4 priced at $86.80 + $0.00 shipping estimate = $86.80* total. MANUFACTURER PART NUMBERIsmcrm86a0 TOOTH COUNT30.FREE SHIPPING
  • New. Offer #5 priced at $77.21 + $0.00 shipping estimate = $77.21* total. Tried and true Dynamic Chain Engagement+ keeps the chain glued to the ring Compatibility with all Deore XT drivetrain and rider needs Exceptionally durable anodized aluminum Product Specifics Tooth Count: 30 Drivetrain Speeds: 12 Round or Oval: Round Material: Aluminum Color: Black Defined Color: Black Direct Mount Type: Direct Mount Shimano . Direct-mount and equipped with Dynamic Chain Engagement+ technology for best-in-class retention, the reinforced SM-CR86 chainring is impact-resistant, compatible with DEORE XT cranksets, and offered in sizes from 28t to 36t in two-tooth increments.FREE SHIPPING

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