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  3. BOX COMPONENTS 55Q-TE-RD9507

BOX COMPONENTS 55Q-TE-RD9507 Prime Rear Derailleur Cage 9-SPEED

55q-te-rd9507 Box Components Three Prime 9 X-wide Rear Derailleur 9-speed Long Cage Matte Black

( Brand: Box Components ), ( Manufacturer Part Number: 55Q-TE-RD9507 ), ( Part Type: Derailleur ), ( Size: 9 Speed ), ( Color: Matte Black ), ( Material: B-knuckle Die Cast Aluminum P-knuckle Injection Molded Nylon ), ( Mounting Type: Bolt-on ), ( Compatible Bike Type: Mountain Bike ), ( Country Of Origin: Taiwan ), ( Derailleur Cage Length: Long Cage )

Review BOX COMPONENTS Three Prime X wide Rear Derailleur 9-speed Long Cage Matte Black

The **Shimano Prime X-Wide Rear Derailleur (Model 55Q-TE-RD9507)** is a high-performance, precision-engineered component designed to elevate the shifting experience on 9-speed drivetrains, particularly for riders seeking versatility and reliability across a wide range of riding conditions. Built to Shimano s exacting standards, this derailleur is crafted with a robust **aluminum alloy frame**, ensuring a balance of strength and weight savings to minimize fatigue during long rides or aggressive descents. Its **X-Wide cage** is engineered to accommodate an extended range of cassette widths, from 108mm to 122mm, making it an ideal choice for riders using compact or semi-compact cranksets paired with wider-range cassettes such as those found on endurance or gravel setups. The **9-speed pulley system** delivers smooth, precise shifting with minimal chain slap, thanks to Shimano s proprietary **Micro Spline technology**, which reduces wear and tear while maintaining consistent performance over time.

The **TE (Touring Endurance) series** designation underscores its durability and adaptability, making it well-suited for everything from urban commuting to off-road adventures. The derailleur features a **durable steel spring** for reliable tensioning, paired with a **high-quality nylon clutch** that reduces chain noise and extends the life of both the derailleur and cassette. Its **low-profile design** ensures compatibility with a wide variety of frame clearances, while the **adjustable limit screws** allow for fine-tuning of the high and low pulley positions, accommodating everything from aggressive mountain bike setups to more conservative road bike configurations. The **quick-release cage** simplifies maintenance and adjustments, enabling riders to swap out cassettes or perform routine servicing with minimal effort.

For those prioritizing performance and longevity, the **Prime series** brings a refined touch with its **smooth shifting action** and **corrosion-resistant finish**, making it a standout choice for riders who demand consistency in all weather conditions. Whether paired with a lightweight road bike, a rugged gravel rig, or a versatile hybrid, this derailleur ensures that every gear change is crisp and predictable, allowing riders to focus on the ride rather than their drivetrain. With its blend of precision engineering, adaptability, and durability, the **Shimano Prime X-Wide 9-Speed Rear Derailleur (55Q-TE-RD9507)** is a versatile upgrade for cyclists seeking a reliable, high-performance shifting solution.

### **Pros and Cons of buying a Shimano Deore XT 55Q-TE-RD9507 Prime X-Wide Rear Derailleur (9-Speed Cage)**

#### **Pros:**

1. **High Performance and Durability** The Deore XT series is known for its robust build quality, making it suitable for both road and light off-road use. The Prime X-Wide version is optimized for wider chainrings, improving efficiency and reducing chain wear.

2. **Wide Chain Compatibility** The "X-Wide" designation means it supports chains with wider pins (e.g., 12.7mm instead of the standard 12.5mm), which reduces chain stretch and improves shifting consistency. This is particularly useful for riders using wider chains or upgrading from older setups.

3. **Reliable Shifting** Shimano s Deore XT derailleurs are engineered for smooth, precise shifting, even under demanding conditions. The 9-speed cage ensures compatibility with modern 9-speed drivetrains.

4. **Durable Construction** The derailleur features a steel frame with a hardened pivot area, reducing wear and extending its lifespan compared to lower-end models.

5. **Compatibility with Shimano Systems** Works seamlessly with other Shimano components (e.g., cassettes, shifters, and chains), making it a good choice for riders already invested in Shimano s ecosystem.

6. **Good Value for Performance** While not as high-end as the SLX or XTR series, the Deore XT offers a strong balance of performance and cost, making it a practical choice for serious riders who don t need the absolute top-tier performance.

7. **Easy Maintenance** Shimano components are widely serviced, and replacement parts are readily available. The design is straightforward, making adjustments and repairs manageable for most riders.

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#### **Cons:**

1. **Not for Extreme Off-Road Use** While durable, the Deore XT is not built for extreme mountain biking or heavy-duty trail riding where more robust derailleurs (like SLX or XTR) are preferred. It may struggle with heavy mud, rocks, or aggressive riding conditions.

2. **Limited Upgrade Path** If you later decide to upgrade to a 10-speed or 11-speed system, you ll need to replace the derailleur entirely, as Shimano does not offer direct upgrades between cage sizes.

3. **Weight** Like most steel derailleurs, this model is heavier than its aluminum counterparts (e.g., SLX or XTR). While the difference is minimal, weight-conscious riders may prefer lighter alternatives.

4. **Price Point** While still affordable compared to top-tier Shimano models, it is more expensive than entry-level derailleurs (e.g., Tourney or Altus). If you only need basic shifting performance, a cheaper option might suffice.

5. **Chain Wear Concerns** While the X-Wide cage reduces chain stretch, it doesn t eliminate it entirely. Riders using very wide chains or in harsh conditions may still experience faster chain wear compared to narrower chains.

6. **Limited Customization** Unlike some higher-end derailleurs, the Deore XT has fewer adjustable features, which may limit fine-tuning for specific riding styles.

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### **Conclusion:**

The **Shimano Deore XT 55Q-TE-RD9507 Prime X-Wide 9-speed rear derailleur** is an excellent choice for riders seeking a reliable, high-performance derailleur that balances durability and shifting precision. It excels in road cycling, light trail riding, and commuting, where smooth shifting and reduced chain wear are priorities. The X-Wide cage makes it a smart upgrade for those using wider chains, and its compatibility with Shimano systems ensures long-term usability.

However, it is not ideal for extreme off-road conditions or riders who prioritize weight savings. If you re already using Shimano components and need a derailleur that delivers consistent performance without breaking the bank, this is a strong recommendation. For more demanding applications (e.g., aggressive mountain biking), consider stepping up to the SLX or XTR series.

### **Recommendation:** **Buy this derailleur if:**

- You ride primarily on roads, light trails, or commute regularly.

- You use or plan to use a wider chain (e.g., 12.7mm).

- You want a durable, reliable derailleur with Shimano s reputation for shifting quality.

- You re already part of a Shimano drivetrain and want seamless integration.

**Avoid this derailleur if:**

- You engage in extreme off-road riding where heavier, more robust derailleurs are needed.

- You re on a tight budget and can opt for a lower-tier Shimano model (e.g., Deore or SLX) that fits your needs.

- You prioritize weight savings and are open to aluminum derailleurs (though these may sacrifice some durability).

For most riders seeking a dependable, mid-range derailleur, the **Deore XT 55Q-TE-RD9507** is a solid and practical choice.

Details:

part #: 55qterd9507 price

  • $66.81

specifications ribicycl:

  • brand: Box Components
  • mpn: 55q-te-rd9507
  • part type: Derailleur
  • size: 9 Speed
  • color: Matte Black
  • material: B-knuckle Die Cast Aluminum P-knuckle Injection Molded Nylon
  • mounting type: Bolt-on
  • compatible bike type: Mountain Bike
  • country of origin: Taiwan
  • derailleur cage length: Long Cage

payments ribicycl:

  • other
  • money order
  • wallet: Apple-pay
  • credit card: Visa

shipping ribicycl:

  • class: Standard
  • cost: $7.29
  • transit: 4-7 Days
  • carrier: UPS
  • service: UPS Ground
  • type: Calculated

seller ribicycl:

  • # reviews: 52
  • city: Duluth, Minnesota
  • rating: 96.3%

returns ribicycl:

  • policy: No Returns

offer ribicycl:

  • started: June 4, 2026
  • options: Ship-to-home
  • quantity: 1
  • best offers: True
  • sold: 0
  • availability: In Stock

general ribicycl:

  • Cycling > Bicycle Components Parts > Rear Derailleurs
  • condition: Used
part type: derailleur, size: 9 speed, mounting type: bolt-on, compatible bike type: mountain bike, country of origin: taiwan, derailleur cage length: long cage,
category: sporting goods > cycling > bicycle components parts > rear derailleurs, color: matte black, material: b-knuckle die cast aluminum p-knuckle injection molded nylon, sku: 18225599566483892,
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1 offer $66.81 USD
  • New. Offer #1 priced at $66.81 + $0.00 shipping estimate = $66.81* total. Designed with sealed bearing pulleys and a solid, serviceable construction, the derailleur is built to handle seasons of hard miles.FREE SHIPPING

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