SRAM 00.6218.046.002 Chainring Bike Kit E1 50/37T 2X12

( Brand: Sram ), ( Part Type: Bike Kit ), ( Number Of Teeth: 50 Tooth ), ( Set Includes: Chainring Bolt ), ( UPC: 006218046002 )

Review SRAM Red Chainring Kit E1 50/37t 2x12 Installed On Bike But Not Used

The **SRAM 00.6218.046.002 Chainring Kit** for **E1 50/37t 2x12-speed drivetrains** represents a precision-engineered solution designed to elevate the performance and reliability of modern mountain bikes and gravel rigs equipped with SRAM s **XX1 Eagle** or **X01 Eagle** drivetrain systems. This meticulously crafted kit features a **dual-chainring setup** with a **50-tooth large ring** and a **37-tooth small ring**, optimized for a balanced blend of climbing efficiency and descending power. The **E1 (External Engagement)** design ensures seamless shifting between the chainrings, eliminating the need for a derailleur to engage the small ring, which reduces mechanical complexity and enhances durability especially in rugged, off-road conditions where debris and mud can compromise traditional shifting systems. Crafted from **high-grade aluminum**, the chainrings are both lightweight and robust, engineered to withstand the stresses of aggressive riding, frequent gear changes, and prolonged use without warping or losing precision. The **SRAM-specific bolt pattern** guarantees a secure and true installation, while the **optimized tooth profile** minimizes chain wear and maximizes efficiency, ensuring smoother power transfer from pedal to wheel. Whether tackling steep climbs where the 50-tooth ring provides a substantial gear advantage or carving through descents where the 37-tooth ring offers a quicker cadence, this kit delivers the versatility needed for demanding rides. Ideal for riders seeking a **high-performance, low-maintenance drivetrain solution**, the **SRAM 00.6218.046.002** is a testament to SRAM s commitment to innovation, combining cutting-edge technology with rugged reliability to keep riders pushing their limits with confidence.

The SRAM 00.6218.046.002 chainring kit, designed for 2x12-speed drivetrains (E1 models), offers a balance of performance and compatibility but comes with trade-offs depending on your riding style, budget, and priorities. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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1. **Compatibility with 2x12-Speed Systems:** This kit is specifically engineered for SRAM s E1 2x12-speed drivetrains, such as the NX Eagle or GX Eagle groupsets. It ensures seamless integration with the rest of the drivetrain, reducing the risk of chain misalignment or compatibility issues that can arise with aftermarket or mismatched parts.

2. **Lightweight Construction:** SRAM chainrings are known for their use of lightweight materials like aluminum or carbon, which reduces rotational weight. This can improve acceleration and climbing efficiency, especially noticeable in endurance or gravel riding where weight matters.

3. **Durability and Reliability:** SRAM chainrings are built to withstand the stresses of high-performance riding. The E1 platform is designed for durability, with features like optimized bolt patterns and heat-treated materials to resist wear and fatigue over time.

4. **Precision Engineering:** SRAM s chainrings are machined with tight tolerances to ensure smooth shifting and minimal chain wear. This is particularly beneficial for riders who prioritize consistent performance and longevity of their drivetrain.

5. **Compatibility with Wide-Range Cassettes:** The 50/37T setup complements SRAM s wide-range cassettes (e.g., 10-51T or 11-52T), which are popular for climbing and descending efficiency. This combination allows for a broad gear range, making it versatile for various terrains, including steep climbs and fast descents.

6. **Easy Installation:** SRAM chainrings are straightforward to install, often requiring only a chainring wrench and a torque wrench to ensure proper bolt tension. The bolt pattern is standardized for the E1 platform, simplifying upgrades or replacements.

7. **Resale Value:** As an OEM part from a reputable brand, this chainring kit retains value better than some aftermarket alternatives, which may degrade faster or require frequent adjustments.

8. **Warranty Support:** SRAM offers warranties on its components, providing peace of mind against manufacturing defects. This can be valuable if the chainring fails prematurely due to a flaw.

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1. **Cost:** SRAM chainring kits are more expensive than some aftermarket alternatives. For example, third-party brands like Shimano, Rotor, or even some budget SRAM chainrings may offer similar performance at a lower price. The E1 platform is also more costly than older SRAM generations (e.g., XX1 or XX01), which may not be necessary for casual riders.

2. **Limited Customization:** Unlike aftermarket chainrings, which often offer a wider variety of tooth counts or materials (e.g., carbon for extreme weight savings), SRAM s OEM options are more constrained. If you want non-standard tooth counts (e.g., 48T instead of 50T), you may need to look elsewhere.

3. **Weight vs. Cost Trade-Off:** While SRAM chainrings are lightweight, some aftermarket options (e.g., carbon chainrings from brands like Rotor or FSA) can be even lighter without significantly increasing cost. For performance-focused riders, this marginal weight savings might justify the extra expense.

4. **Compatibility with Non-SRAM Systems:** This kit is *not* compatible with non-SRAM drivetrains (e.g., Shimano, Campagnolo) without additional adapters or modifications. If you re considering a mixed-brand setup, you ll need to account for extra costs and potential shifting issues.

5. **Potential for Overkill:** If you re not riding at a high level or don t need the performance benefits of a 2x12 drivetrain, the extra cost of an E1 chainring kit may not be justified. For example, a 1x12 drivetrain could suffice for many riders, offering simplicity and cost savings.

6. **Chain Wear:** SRAM s aggressive cassette designs (e.g., 10-51T) can accelerate chain wear, especially if the chain is not regularly serviced or replaced. While the chainring itself may last a long time, the associated chain and cassette will require more frequent maintenance or replacement.

7. **Bolt Torque Sensitivity:** SRAM chainrings are sensitive to bolt torque. Over-tightening can damage the chainring or crank arms, while under-tightening can lead to loosening over time. This requires careful attention during installation and periodic checks.

8. **Availability of Aftermarket Alternatives:** If you encounter issues (e.g., a cracked chainring), finding a direct replacement from SRAM may take longer than sourcing an aftermarket option, which could be more readily available.

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The SRAM 00.6218.046.002 chainring kit is an excellent choice for riders using a 2x12-speed SRAM E1 drivetrain who prioritize compatibility, durability, and precision engineering. It excels in performance-oriented setups where weight and reliability are critical, such as gravel riding, endurance events, or high-performance road cycling. The kit s seamless integration with SRAM s ecosystem and lightweight construction make it a strong option for those who want to maximize their drivetrain s potential.

However, the higher cost and limited customization may not be worth it for casual riders, those on a tight budget, or those who prefer non-SRAM systems. If you re open to alternatives, aftermarket chainrings or older SRAM generations might offer similar benefits at a lower price. Additionally, if you re not fully committed to a 2x12 setup, a 1x12 drivetrain could provide a more straightforward and cost-effective solution.

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- You are already using or planning to use a SRAM E1 2x12-speed drivetrain (e.g., NX or GX Eagle).

- You value the drivetrain s performance, reliability, and compatibility with SRAM s ecosystem.

- You are willing to invest in a high-quality, long-lasting component that aligns with your riding demands (e.g., gravel, endurance, or competitive road cycling).

- You prioritize ease of installation and maintenance, as SRAM s parts are well-supported and easy to work with.

- You are on a budget and can find a similarly performing aftermarket chainring at a lower cost.

- You are not committed to a 2x12 drivetrain and could benefit from the simplicity and cost savings of a 1x12 setup.

- You want more customization options, such as non-standard tooth counts or carbon construction.

- You are using a non-SRAM drivetrain and are open to exploring other brands or adapters.

Ultimately, this chainring kit is a solid investment for serious riders who want to optimize their SRAM E1 drivetrain, but it may not be the best choice for everyone. Evaluate your riding needs, budget, and long-term goals before making a decision.

Details:

The 8-bolt design ensures a secure fit for optimal chain engagement and durability. This set includes a chainring bolt and features direct mount chainring with 50/37t tooth configuration, suitable for 2x12-speed systems. Sram Red E1 50/37 Chain Ring - This is a new item but I listed as used it was installed on bike purchased and switched to 48/35. The RED 2x Chainring Kit E1 by SRAM is designed for high performance cycling enthusiasts.

Comes with bolts and instructions. If you are looking to add speed through crank teeth, here is your chance at a great price.

part #: 006218046002 prices

• $302.94-$303.86

specifications ribicycl:

• brand: Sram
• part type: Bike Kit
• number of teeth: 50 Tooth
• set includes: Chainring Bolt
• upc: 006218046002

seller ribicycl:

• rating: 100.0%
• city: Crystal Lake, Illinois
• # reviews: 659

shipping ribicycl:

• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• cost: $7.46
• transit: 4-8 Days
• type: Calculated

returns ribicycl:

• policy: No Returns

payments ribicycl:

• wallet: Google-pay
• credit card: Visa
• other

general ribicycl:

• Cycling > Bicycle Components Parts > Chainrings BMX Sprockets
• condition: Used

offer ribicycl:

• started: March 12, 2026
• sold: 0
• options: Ship-to-home
• best offers: True
• availability: In Stock
• quantity: 1

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