SRAM 36136 Sync Chainring Road Bike 40 4-ARM

( Brand: Sram ), ( Manufacturer Part Number: 36136 ), ( Model: X-SYNC ), ( Part Type: Bike ), ( Number Of Teeth: 40 Tooth ), ( Color: Black ), ( Compatible Bike Type: Road Bike ), ( Material: Aluminum ), ( Mounting Type: 4-arm )

Review SRAM X sync 40 Tooth Aluminum Chainring Black Road Bike

The **SRAM XX1 X-Sync 40 4-Arm Chainring** is a high-performance, precision-engineered component designed to elevate the efficiency, durability, and shifting performance of modern road bikes. Part of SRAM s cutting-edge XX1 drivetrain lineup, this chainring embodies the brand s commitment to innovation, leveraging the **X-Sync** technology to deliver seamless, synchronized shifting across the entire drivetrain. Crafted from a high-grade, lightweight aluminum alloy, the 40-tooth chainring is optimized for climbing efficiency, allowing riders to maintain a higher cadence and reduce pedal resistance on steep ascents. Its **4-arm design** enhances stiffness and power transfer, ensuring that every watt of effort is effectively translated into forward motion, while the precise tooth profile minimizes chain slap and wear, extending both the chainring s lifespan and the overall drivetrain s longevity.

The **X-Sync** system integrates with SRAM s **XX1 12-speed** drivetrain to provide ultra-responsive, precise shifting eliminating the ghost shifts and hesitation that plague traditional mechanical systems. This synchronization ensures that the chainring s engagement with the chain is flawless, reducing friction and optimizing power delivery, which is particularly beneficial for competitive cyclists and endurance riders who demand every advantage on the road. The chainring s **bolted-on design** allows for easy installation and removal, accommodating various frame and fork setups, while its **compatibility with SRAM s Red eTap AXS** system ensures seamless integration with electronic shifting for those seeking the ultimate in convenience and control.

Beyond its performance benefits, the **SRAM XX1 X-Sync 40 4-Arm Chainring** is built to withstand the rigors of intense riding conditions. Its robust construction resists bending and fatigue, even under heavy loads, while the **optimized tooth geometry** reduces chain wear, protecting both the chainring and the chain from premature degradation. Whether tackling grueling climbs, sprinting in flat-out races, or navigating technical descents, this chainring delivers consistent, reliable performance proving that SRAM s engineering excellence is as much about endurance as it is about speed. For riders who refuse to compromise on quality, this chainring is a testament to SRAM s dedication to pushing the boundaries of bicycle technology, offering a blend of precision, durability, and power that sets it apart in the world of high-performance road cycling.

The SRAM 36136 X-Sync 40 4-Arm Chainring is a popular choice for road cyclists, particularly those who prioritize performance, durability, and compatibility with modern drivetrains. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Performance and Efficiency**

The X-Sync 40 chainring is designed with a 4-arm (4-bolt) pattern, which improves chain engagement and reduces chain slap compared to traditional 3-arm chainrings. This results in smoother power transfer, especially at higher cadences, and can enhance overall efficiency. The 40-tooth size is ideal for climbers and riders who prefer a lower gear for steep ascents without sacrificing top-end speed.

2. **Durability and Strength**

SRAM s X-Sync chainrings are forged from high-quality aluminum alloy, making them resistant to bending and warping. The 4-arm design distributes stress more evenly across the ring, reducing the risk of damage from impacts or heavy loads. This makes it a reliable choice for aggressive riding styles or rough terrain.

3. **Compatibility with Modern Drivetrains**

The X-Sync 40 chainring is designed to work seamlessly with SRAM s XX1, Force, and Rival drivetrains, as well as some Shimano groupsets (though a chainring adapter may be required for Shimano). It is also compatible with 11-speed and 12-speed systems, making it a versatile upgrade option for riders looking to optimize their gearing.

4. **Reduced Chain Wear**

The X-Sync chainring s precise tooth profile and tighter chain engagement minimize lateral movement of the chain, which can reduce wear on both the chainring and the chain. This can extend the lifespan of your drivetrain components, saving you money in the long run.

5. **Lightweight**

While not the lightest chainring on the market, the X-Sync 40 is still relatively lightweight for its size and durability. The 4-arm design allows for thinner arms, which contributes to its weight savings without compromising strength.

6. **Aesthetic Appeal**

The X-Sync chainring has a sleek, modern design with a polished finish that many riders appreciate. It also features SRAM s signature branding, which can be a point of pride for enthusiasts.

7. **Easy Installation**

The chainring is designed for straightforward installation, often requiring only a chainring tool and a torque wrench to ensure proper tightening. SRAM provides clear instructions, and the 4-arm pattern makes alignment easier compared to some other designs.

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### **Cons**

1. **Cost**

The SRAM X-Sync 40 chainring is not the cheapest option on the market. While it offers high performance and durability, it may be overkill for casual riders or those on a tight budget. Prices typically range between $50 and $80, depending on where you purchase it.

2. **Limited Compatibility with Non-SRAM Drivetrains**

While it works well with SRAM drivetrains, compatibility with Shimano or other brands may require additional components, such as a chainring adapter or a new chain. This can add to the overall cost and complexity of upgrading.

3. **Potential for Overkill**

If you are a casual rider or primarily ride on flat terrain, a 40-tooth chainring may feel too low for most of your riding. While it is useful for climbs, it can make pedaling feel labored on flat sections or descents unless paired with a suitable cassette. Riders who prefer a more balanced gearing setup might find it less versatile.

4. **Maintenance Requirements**

Like all chainrings, the X-Sync 40 requires regular cleaning and lubrication to prevent corrosion and ensure smooth operation. Neglecting maintenance can lead to premature wear or failure, especially in harsh conditions.

5. **Availability of Alternatives**

There are other high-quality chainrings available from brands like Shimano, Campagnolo, or even budget-friendly options from SRAM s older models. These alternatives may offer similar performance at a lower cost, depending on your specific needs.

6. **Potential for Chain Slap on Rough Terrain**

While the 4-arm design reduces chain slap compared to traditional 3-arm chainrings, it is not entirely eliminated. On very rough terrain or when riding with a heavy load, some chain slap may still occur, which could affect comfort and longevity of the chainring.

7. **Not Ideal for Time Trial or Triathlon Riding**

The X-Sync 40 chainring is not optimized for aerodynamic efficiency, which is critical for time trial or triathlon riding. Riders in these disciplines may prefer a smaller chainring (e.g., 34 or 36 teeth) to reduce drag and improve speed in aero positions.

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### **Conclusion**

The SRAM 36136 X-Sync 40 4-Arm Chainring is an excellent choice for riders who prioritize performance, durability, and compatibility with modern drivetrains. Its 4-arm design enhances chain engagement and reduces wear, making it ideal for climbers, aggressive riders, or those looking to upgrade their gearing for better efficiency. The chainring s strength and precision also make it a reliable long-term investment.

However, it is not without drawbacks. The cost may be prohibitive for casual riders, and its low gearing may not suit everyone s riding style. Additionally, its compatibility is best suited for SRAM systems, which could limit its appeal to riders using other brands. If you are a climber, a performance-oriented rider, or someone who values durability and efficiency, the X-Sync 40 is a strong recommendation. For other riders, especially those on a budget or who prefer a more balanced gearing setup, alternatives may be worth considering.

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### **Recommendation**

- You are a climber or ride in hilly terrain and need a low gear for efficiency.

- You prioritize durability, reduced chain wear, and smooth power transfer.

- You are using or upgrading to an SRAM drivetrain (XX1, Force, Rival) and want optimal compatibility.

- You appreciate the performance benefits of the 4-arm design and are willing to invest in a high-quality component.

- You are a casual rider or primarily ride on flat terrain and do not need a 40-tooth chainring.

- You are using a non-SRAM drivetrain and are concerned about compatibility or additional costs for adapters.

- You are on a tight budget and can find a similarly performing chainring at a lower price.

- You ride in time trial or triathlon disciplines and need a smaller, more aerodynamic chainring.

For most serious cyclists who value performance and longevity, the SRAM X-Sync 40 chainring is a worthwhile upgrade. Pair it with a suitable cassette (e.g., 11-32 or 11-34) to balance your gearing for a versatile riding experience.

Details:

SRAM X-SYNC 40 Tooth 4-Arm Aluminum Chainring Black Road Bike MPN 36136.

part #: 36136 prices

• $23.62-$38.99

specifications ribicycl:

• brand: Sram
• mpn: 36136
• model: X-sync
• part type: Bike
• number of teeth: 40 Tooth
• color: Black
• compatible bike type: Road Bike
• material: Aluminum
• mounting type: 4-arm

payments ribicycl:

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

returns ribicycl:

• policy: No Returns

general ribicycl:

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

offer ribicycl:

• options: Ship-to-home
• started: February 24, 2026
• sold: 0
• availability: In Stock
• quantity: 1

seller ribicycl:

• rating: 75.0%
• # reviews: 2
• city: Asheville, North Carolina

shipping ribicycl:

• carrier: USPS
• type: Calculated
• cost: $5.52
• class: Standard
• transit: 4-10 Days
• service: USPS Ground Advantage

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