1. Bicycle Rims For Sale
  2. sku: 17982999309493881
  3. SHIMANO SM-CRM90

SHIMANO SM-CRM90 Xtr Chainring 30T 1X11 4-BOLT

Sm-crm90 Shimano Xtr Chainring 30t 1x11 Speed 4-bolt Used

( Brand: Shimano ), ( Manufacturer Part Number: SM-CRM90 ), ( Model: SHIMANO XTR SM-CRM90 ), ( Compatible Brand: For Shimano ), ( Number Of Teeth: 30 Tooth ), ( Distance Between Bolt Holes: 96mm ), ( Color: Gray ), ( Compatible Bike Type: Mountain Bike ), ( Material: Aluminum ), ( Mounting Type: 4-arm Asymmetrical ), ( Part Type: Chainring )

Review SHIMANO Xtr Chainring 30t 1x11 Speed 4-bolt Used

The **Shimano SM-CRM90 XTR 30T 1x11 4-Bolt Chainring** is a precision-engineered component designed to deliver unmatched performance, durability, and efficiency for cyclists demanding the absolute best in drivetrain technology. Crafted from high-grade aluminum alloy, this chainring is built to withstand the rigors of aggressive riding, offering exceptional strength and resistance to wear while maintaining a lightweight profile for optimal power transfer. The **XTR-grade** construction ensures superior durability, making it ideal for competitive cyclists, gravel enthusiasts, and those pushing the limits on challenging terrain. With a **30-tooth** configuration, this chainring is perfectly suited for 1x11-speed setups, providing a balanced gearing solution that maximizes climbing efficiency while still offering sufficient acceleration for sprints and descents.

The **SM-CRM90** series features Shimano s **Super Multi** technology, which enhances chain engagement and reduces wear on both the chainring and cassette, extending the lifespan of your entire drivetrain. The **4-bolt pattern** ensures compatibility with a wide range of frames and bottom brackets, offering flexibility for custom builds or upgrades. Engineered with Shimano s signature precision, the chainring s teeth are meticulously machined to minimize chain skip and maximize smoothness, even under heavy loads. Whether tackling steep climbs, rough gravel, or aggressive descents, this chainring delivers consistent, reliable performance with minimal maintenance.

For riders who refuse to compromise on quality, the **XTR** badge signifies Shimano s commitment to excellence, combining cutting-edge materials with rigorous testing to ensure peak performance in the most demanding conditions. The **1x11-speed** setup it supports streamlines shifting, reduces drivetrain complexity, and enhances reliability, making it a favorite among cyclists who prioritize simplicity without sacrificing power. Whether paired with a carbon or aluminum frame, this chainring is a testament to Shimano s engineering prowess, offering a seamless blend of strength, efficiency, and precision for those who demand nothing less than the best.

### Pros and Cons of buying a Shimano SM-CRM90 XTR 30T 1x11 4-Bolt Chainring

#### **Pros:**

1. **Performance-Oriented Design** The XTR line is Shimano s highest-tier group, known for superior durability, smooth shifting, and high-quality components. The SM-CRM90 (Super Multi Chainring) is optimized for 1x drivetrains, offering a wide gear range with minimal chain wear and improved efficiency compared to traditional double-chainring setups.

2. **Wide Gear Range** The 30T front ring is designed to work seamlessly with a compact rear cassette (e.g., 10-50T or 11-52T), providing a broad range of gears for climbing and descending. This reduces the need for frequent shifting and improves chain longevity.

3. **Reduced Chain Wear** The SM-CRM90 s design minimizes chain flex and wear by distributing load more evenly across the chainring teeth. This is particularly beneficial for 1x setups, where the chain runs over a single front ring for extended periods.

4. **Lightweight** Shimano s XTR components are engineered to be lightweight while maintaining strength, which can contribute to a more responsive and efficient drivetrain.

5. **Compatibility** The 4-bolt pattern ensures compatibility with most modern road and gravel bikes, though it s worth confirming your bike s crank arm compatibility (e.g., BB86, BB92, or standard 130mm cranks).

6. **Durability** XTR components are built to last, with high-quality materials and precise machining that reduce the risk of premature failure, even under heavy use.

7. **Shift Smoothness** Shimano s XTR derailleurs and shifters are renowned for their smooth and precise shifting, which translates to a better riding experience.

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#### **Cons:**

1. **High Cost** The XTR line is premium, and while the SM-CRM90 chainring is a high-quality part, it comes at a significant price point. This may not be justified if you re on a budget or don t need the highest performance tier.

2. **Overkill for Some Riders** If you primarily ride on flat terrain or don t require the extreme durability and precision of XTR, a mid-tier or entry-level chainring (e.g., SLX, Deore, or even some 105 parts) may suffice without the added cost.

3. **Weight Consideration** While XTR parts are lightweight, the overall weight savings may be negligible for casual riders. The marginal gain in weight reduction might not justify the expense for everyone.

4. **Maintenance Requirements** High-end components like XTR require regular maintenance to perform optimally. If you re not diligent about cleaning and lubricating your drivetrain, the benefits of the chainring may be diminished over time.

5. **Compatibility Issues** Some older or budget bikes may not have the necessary crank arm spacing or bolt patterns to accommodate the SM-CRM90. Always double-check compatibility before purchasing.

6. **Market Availability** XTR parts can sometimes be harder to find or more expensive to replace compared to more common components, which may be a consideration if you re looking for long-term affordability.

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### **Conclusion:**

The Shimano SM-CRM90 XTR 30T 1x11 4-bolt chainring is an excellent choice for serious cyclists, racers, or those who prioritize performance, durability, and smooth shifting. Its advantages in chain wear reduction, gear range, and overall drivetrain efficiency make it a worthwhile investment for riders who demand the best. However, if you re a casual rider, a budget-conscious cyclist, or someone who doesn t need the highest-tier performance, a lower-tier chainring (e.g., SLX, Deore, or 105) may offer a better value without sacrificing too much in terms of functionality.

### **Recommendation:**

- **Buy it if:** You re a competitive or serious rider, prioritize drivetrain longevity, and want the best possible performance from your 1x setup. It s also ideal if you frequently ride in conditions that demand high durability (e.g., gravel, rough terrain, or heavy use).

- **Skip it if:** You re on a tight budget, ride mostly on flat terrain, or don t need the extreme performance of XTR. In such cases, a mid-range chainring from Shimano s SLX or Deore lines could offer similar benefits at a fraction of the cost.

- **Consider alternatives:** If you re unsure, test ride a bike with an XTR drivetrain or consult with a local bike shop to see if the performance justifies the cost for your riding style. Additionally, if you re upgrading an existing setup, ensure the rest of your drivetrain (e.g., cassette, derailleur, shifters) is compatible and of similar quality to maximize the benefits of the SM-CRM90.

Details:

USED Shimano XTR chainring, 30 tooth, 11 speed. Brand: Shimano model: XTR SM-CRM90, Speed: 1x11 Teeth: 30T BCD: 4-Bolt Asymmetric 96mm. Still in very good condition.

part #: smcrm90 prices

  • $30.00-$104.51

specifications ribicycl:

  • brand: Shimano
  • mpn: Sm-crm90
  • model: Shimano Xtr Sm-crm90
  • compatible brand: For Shimano
  • number of teeth: 30 Tooth
  • distance between bolt holes: 96mm
  • color: Gray
  • compatible bike type: Mountain Bike
  • material: Aluminum
  • mounting type: 4-arm Asymmetrical
  • part type: Chainring

payments ribicycl:

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

returns ribicycl:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted
  • method: Money back

seller ribicycl:

  • city: Denver, Colorado
  • # reviews: 173
  • rating: 100.0%

shipping ribicycl:

  • service: USPS Ground Advantage
  • type: Calculated
  • carrier: USPS
  • transit: 3-5 Days
  • cost: $6.37
  • class: Standard

offer ribicycl:

  • options: Ship-to-home
  • started: May 17, 2026
  • best offers: True
  • quantity: 1
  • availability: In Stock
  • sold: 0

general ribicycl:

  • condition: Used
  • Cycling > Bicycle Components Parts > Chainrings BMX Sprockets
compatible brand: for shimano, number of teeth: 30 tooth, distance between bolt holes: 96mm, compatible bike type: mountain bike, mounting type: 4-arm asymmetrical, part type: chainring,
category: sporting goods > cycling > bicycle components parts > chainrings bmx sprockets, color: gray, material: aluminum, sku: 17982999309493881,
Shimano SM-CRM90 Is Similar To:
ribicycl logo
5 offers $30.00–$104.51 USD
  • Used. Offer #1 priced at $30.00 + $6.37 shipping estimate = $36.37* total. Still in very good condition. Speed: 1x11.+$6.37 shipping
  • Neu. Offer #2 priced at $104.51 + $52.20 shipping estimate = $156.71* total. Gruppe: XTR. Kettenbl tter XTR FC-M9000/M9020 1-fach.+$52.20 shipping
  • Used. Offer #3 priced at $45.00 + $6.07 shipping estimate = $51.07* total. Almost no miles on this as the photos indicate.+$6.07 shipping
  • New. Offer #4 priced at $119.99 + $0.00 shipping estimate = $119.99* total. Shimano XTR Shimano XTR CRM90 1x11 Chainrings Shimano XTR CRM90 1x11 Chainrings Hollowglide technology provides exceptional driving stiffness and strength Titanium, carbon, and aluminum materials Titanium teeth for lightweight durability Modified tooth profile prevents chain drop.FREE SHIPPING
  • New. Offer #5 priced at $89.99 + $0.00 shipping estimate = $89.99* total. With a durable construction and precise engineering, this 34T chainring is compatible with 11-speed bicycles and offers excellent performance on challenging terrain The Shimano XTR 1X11SPD Chainring is a high-quality bicycle component designed for off-road cycling enthusiasts.FREE SHIPPING

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