SRAM 00.7518.135.000 Rival Etap Axs Rear Derailleur 12-SPEED 36T

( Brand: Sram ), ( Part Type: Derailleur ), ( Color: Black ), ( Compatible Bike Type: Cross Bike, Gravel Bike, Mountain Bike, Racing Bike, Road Bike ), ( Material: Alloy, Aluminum, Aluminum Alloy, Chromoly, Chrome ), ( Mounting Type: Hanger ), ( Number Of Speeds: 12 Speed ), ( Derailleur Cage Length: Medium Cage ), ( UPC: 007518135000 )

Review SRAM Rival Etap Axs 12-speed Rear Derailleur 36t Max

The **SRAM Rival ETAP AXS 12-Speed Rear Derailleur (Part #00.7518.135.000, 36T)** is a precision-engineered, wireless electronic shifting derailleur designed to elevate the performance and convenience of modern road and gravel cycling. Built upon SRAM s legendary Rival series, this derailleur integrates seamlessly with the **AXS (Advanced eXperience Shift) wireless electronic shifting system**, eliminating the need for traditional cable housing and external controls while delivering ultra-responsive, lag-free gear changes. The **36-tooth cog compatibility** ensures versatility across a wide range of riding conditions, from spirited climbs to fast descents, making it an ideal choice for cyclists who demand both efficiency and adaptability. Crafted from high-strength aluminum, the derailleur features a robust, lightweight construction that resists fatigue and corrosion, even under the most demanding conditions. Its **12-speed compatibility** aligns perfectly with SRAM s latest drivetrain offerings, including the **Force eTap AXS** and **Rival eTap AXS** systems, ensuring seamless integration with the full AXS ecosystem. The **ETAP (Electronic Transmission Adaptive Positioning)** technology optimizes gear engagement by dynamically adjusting the derailleur s position based on real-time shifting demands, reducing wear and tear while enhancing smoothness and precision. With its **compact, streamlined design**, the Rival ETAP AXS derailleur minimizes clutter on the bike frame, allowing for a cleaner, more aerodynamic setup. The system s **wireless operation** eliminates the hassle of cable routing and maintenance, while the **eTap AXS app** provides intuitive control over shifting parameters, including shift quality, cadence sensitivity, and gear limits, allowing riders to fine-tune their experience to their exact preferences. Whether tackling grueling time trials, exploring rugged gravel trails, or simply commuting with efficiency, this derailleur delivers a blend of cutting-edge technology and proven reliability, making it a standout choice for cyclists who refuse to compromise on performance or convenience.

The SRAM Rival ETAP AXS 12-speed rear derailleur (part number 00.7518.135.000) is a mid-range option designed for riders seeking wireless shifting and improved performance without the premium price of higher-end SRAM groupsets. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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The ETAP AXS system eliminates the need for cable routing, reducing drag and simplifying installation. This is particularly advantageous for frame builds or complex cable management scenarios. The wireless operation also allows for easier adjustments and maintenance, as there are no cables to stretch or fray.

AXS components are generally lighter than their wired counterparts due to the absence of cables and housing. This can contribute to a more responsive and agile ride, especially on climbs or in technical terrain.

The ETAP AXS derailleur integrates seamlessly with SRAM s wireless shifting system, which includes a battery-powered shift controller (e.g., the AXS Battery or AXS Battery 2) and a shift button (e.g., the AXS Shift Button). This system offers precise, reliable shifting and can be programmed for different shifting profiles (e.g., aggressive, neutral, or custom).

The derailleur is designed for SRAM s 12-speed drivetrains, which offer a wider range of gearing options compared to 11-speed systems. This can be beneficial for riders who prioritize versatility, whether for climbing, descending, or all-around performance.

SRAM s AXS components are built to withstand rigorous use, with robust construction and high-quality materials. The derailleur is designed to handle the demands of off-road riding, including mud, debris, and rough terrain, though it is not as rugged as some entry-level or mid-range wired derailleurs.

AXS technology is a relatively new but rapidly evolving platform. Investing in an AXS-compatible derailleur now may make it easier to upgrade or replace components in the future without needing to switch to a different system.

The Rival ETAP AXS derailleur features a sleek, modern design that aligns with SRAM s branding. While this is subjective, some riders appreciate the visual consistency of a premium-looking component on their bike.

The derailleur pairs well with other ETAP AXS components in the Rival lineup (e.g., cranks, shifters, and cassettes), allowing for a cohesive build. This can be appealing for riders who want a coordinated groupset.

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The primary drawback of the Rival ETAP AXS derailleur is its price. AXS components are significantly more expensive than their wired counterparts, which can be a barrier for budget-conscious riders. For example, the Rival ETAP AXS derailleur costs more than a comparable wired Rival or 1x drivetrain derailleur.

The AXS system requires a battery (included with the derailleur or purchased separately) to function. While the battery life is impressive (typically lasting hundreds of hours or more), it adds another component to maintain. Riders must ensure the battery is charged and replace it when it degrades over time. Additionally, if the battery fails or is lost, shifting will cease until it is replaced or recharged.

While AXS is growing in popularity, it is still not as widely adopted as traditional wired systems. This means that finding replacement parts, accessories, or support for AXS components may be more challenging in some regions or bike shops. Some mechanics may not be as familiar with AXS systems, which could complicate repairs or adjustments.

The AXS Battery or AXS Battery 2 adds noticeable weight to the bike, particularly if mounted in a location that is not optimized for balance (e.g., near the bottom bracket). While the battery is lightweight by modern standards, it can still contribute to the overall weight of the drivetrain.

AXS relies on software to control shifting, which means there is a risk of glitches, compatibility issues, or firmware updates that could temporarily disrupt functionality. While SRAM has generally been reliable with updates, riders must ensure their system is up to date and be prepared for occasional software-related hiccups.

The Rival ETAP AXS derailleur is designed specifically for SRAM s AXS system and may not be compatible with non-SRAM components (e.g., Shimano Di2 or Campagnolo EPS). If a rider wants to mix brands, they will need to ensure full compatibility, which may not always be possible.

AXS introduces a new way of shifting that may require some adjustment for riders used to traditional wired systems. For example, the shift button must be programmed correctly, and riders must become familiar with the AXS app (if used) for customization. This can be a minor inconvenience for those transitioning from wired systems.

AXS components may not hold their resale value as well as traditional groupsets, as the technology is still evolving and not as widely adopted. Riders who plan to sell their bike in the future may find that AXS components depreciate more quickly than wired alternatives.

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The SRAM Rival ETAP AXS 12-speed rear derailleur is an excellent choice for riders who prioritize wireless shifting, modern technology, and the convenience of AXS over the cost savings of wired systems. It offers superior shifting performance, reduced drag, and a more streamlined build, making it ideal for those who value these benefits. However, the higher upfront cost, battery dependency, and potential limitations in availability or support may not justify the investment for every rider.

If you are already committed to the AXS ecosystem, enjoy the benefits of wireless shifting, and can afford the premium price, this derailleur is a solid mid-range option that pairs well with other Rival ETAP AXS components. For riders on a tighter budget or those who prefer the simplicity and reliability of wired systems, a traditional Rival or 1x derailleur may be a more practical choice.

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- You are building a bike with other AXS components (e.g., cranks, shifters) and want a cohesive, wireless drivetrain.

- You value the convenience, precision, and reduced drag of AXS technology.

- You are willing to invest in a higher-end system and are prepared for the maintenance associated with battery management.

- You plan to use the bike primarily in conditions where wireless shifting will enhance your riding experience (e.g., complex cable routing, off-road terrain).

- You are on a tight budget and can achieve similar performance with a wired Rival or 1x derailleur at a lower cost.

- You are unsure about committing to AXS technology long-term due to concerns about battery life, compatibility, or resale value.

- You prefer the simplicity and lower maintenance of traditional wired shifting systems.

- You do not have access to reliable support or replacement parts for AXS components in your area.

Ultimately, the Rival ETAP AXS derailleur is a strong mid-range option for riders who embrace modern technology and are willing to pay for its advantages. For others, the benefits may not outweigh the costs.

Details:

Rear derailleur only, original accessories and packaging are not included. SRAM Rival eTap AXS 12-speed Rear Derailleur - 36T Max. In like new condition, used for under 5 miles.

part #: 007518135000 prices

• $115.00-$375.00

specifications ribicycl:

• brand: Sram
• part type: Derailleur
• color: Black
• compatible bike type: Cross Bike, Gravel Bike, Mountain Bike, Racing Bike, Road Bike
• material: Alloy, Aluminum, Aluminum Alloy, Chromoly, Chrome
• mounting type: Hanger
• number of speeds: 12 Speed
• derailleur cage length: Medium Cage
• upc: 007518135000

seller ribicycl:

• # reviews: 324
• city: Santa Ana, California
• rating: 100.0%

shipping ribicycl:

• transit: 3-8 Days
• type: Calculated
• cost: $0.00
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS

returns ribicycl:

• policy: No Returns

offer ribicycl:

• availability: In Stock
• sold: 0
• quantity: 1
• started: February 3, 2026
• options: Ship-to-home

payments ribicycl:

• wallet: Google-pay
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• credit card: Mastercard

general ribicycl:

• Cycling > Bicycle Components Parts > Rear Derailleurs
• condition: Used

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