RACEFACE RNW104X38BLU Bcd Bicycle Chainring 821973330808 104MM 38T

( Brand: Raceface ), ( Manufacturer Part Number: RNW104X38BLU ), ( Part Type: Bcd Bicycle ), ( Color: Blue ), ( Number Of Teeth: 38 Tooth ), ( UPC: 821973330808 )

Review RACEFACE Narrow wide 104mm Bcd 38t Blue Bicycle Chainring Open Packaging

The **RaceFace RNW104X38BLU Narrow-Wide 104mm BCD 38T bicycle chainring** is a precision-engineered, high-performance front sprocket designed for cyclists seeking both efficiency and versatility in their riding experience. Crafted from durable, high-grade aluminum alloy, this chainring combines lightweight construction with robust strength, ensuring it can withstand the demands of aggressive climbing, spirited sprints, and long-distance endurance rides without compromising on performance. The **104mm BCD (bolt circle diameter)** makes it compatible with a wide range of road and gravel bike bottom brackets, including those with standard 104mm spacing, while the **38-tooth configuration** provides an optimal gearing ratio for riders who prioritize a blend of climbing efficiency and sprinting power. The **Narrow-Wide (NW) profile** is a standout feature, offering a unique edge over traditional chainrings by optimizing chain engagement across a broader range of derailleur adjustments. This design minimizes chain slippage and wear, particularly when transitioning between gears, while also reducing the risk of derailleur hanger wear a common issue in high-mileage setups. The **blued finish** not only adds a sleek, professional aesthetic but also provides a subtle protective layer against corrosion, ensuring longevity even in wet or dusty conditions. Whether paired with a single-chainring setup for minimalist simplicity or integrated into a double-chainring configuration for added versatility, this RaceFace chainring delivers a seamless riding experience with enhanced chain retention and smoother gear shifts. Ideal for road cyclists, gravel enthusiasts, and performance-oriented riders, it embodies the perfect marriage of innovation and practicality, making it a standout choice for those who demand nothing less than excellence from their drivetrain components.

### **Pros and Cons of buying a Race Face RNW104X38BLU (Narrow-Wide 104mm BCD, 38T) Chainring**

1. **Narrow-Wide (NW) Compatibility** The 104mm BCD (bolt circle diameter) and Narrow-Wide design allow it to fit both standard 104mm BCD cranks and newer Narrow-Wide cranks, expanding its compatibility with modern drivetrains like Shimano 105, Ultegra, and Di2, as well as SRAM NX , X01, and XX1.

2. **Durability and Performance** Race Face is known for high-quality, precision-machined chainrings that offer smooth shifting and longevity, especially when paired with compatible chains (e.g., Shimano HG-K or SRAM PowerLink).

3. **Lightweight Construction** The aluminum or carbon fiber (depending on the model) design keeps weight low while maintaining rigidity, which is beneficial for climbing and high-speed efficiency.

4. **Versatile Tooth Count (38T)** A 38T chainring is a common front option for road bikes, offering a good balance between climbing efficiency and gearing versatility. It pairs well with mid-range or compact chainsets for a wide range of riding conditions.

5. **Compatibility with Wide-Width Chains** The Narrow-Wide design ensures better chain engagement and reduced wear compared to standard chainrings, particularly when using wider chains like Shimano s HG-K or SRAM s PowerLink.

6. **Easy Installation** Most Race Face chainrings come with a standard bolt pattern and are straightforward to install, though proper alignment is crucial for smooth shifting.

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1. **Cost** High-quality chainrings, especially from brands like Race Face, can be more expensive than generic or budget alternatives. The price may not justify the upgrade if you already have a reliable chainring.

2. **Limited Customization** Unlike some aftermarket options, Race Face chainrings are not highly customizable in terms of tooth profile or material (unless you opt for carbon, which is pricier). The 38T size is standard, so you may not gain a significant advantage over other brands.

3. **Potential Overkill for Casual Riders** If you primarily ride casually or on flat terrain, a 38T chainring may feel too small for relaxed riding. In such cases, a larger front gear (e.g., 40T or 42T) might be more practical.

4. **Chain Wear Considerations** While Narrow-Wide chainrings reduce wear on standard chains, they are optimized for specific chain types (e.g., Shimano HG-K or SRAM PowerLink). Using an incompatible chain (e.g., a narrow chain on a Narrow-Wide ring) can lead to premature wear or poor shifting.

5. **Compatibility Gaps** Although Narrow-Wide is widely adopted, some older or non-premium cranks (e.g., entry-level Shimano or older SRAM models) may not fully support the NW design, requiring additional adapters or compatibility checks.

6. **Resale Value** Like most high-end components, Race Face chainrings may not retain much resale value, especially if the bike market shifts toward different drivetrain standards.

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### **Conclusion and Recommendation**

The **Race Face RNW104X38BLU Narrow-Wide 38T chainring** is a solid choice for riders who prioritize **compatibility, durability, and performance**, particularly those upgrading to a **Narrow-Wide drivetrain** or seeking a premium chainring for their existing setup. Its **aluminum or carbon construction**, **smooth shifting characteristics**, and **versatility** make it a worthwhile investment for serious cyclists, gravel riders, or those using **Shimano or SRAM drivetrains**.

However, if you are on a **tight budget**, a **budget-friendly alternative** (e.g., Shimano or SRAM s own Narrow-Wide chainrings) may suffice. Similarly, if you primarily ride **flat terrain or prefer a larger front gear**, a different tooth count (e.g., 40T or 42T) could be more practical.

- **Buy it if:** You need a **high-quality, Narrow-Wide-compatible chainring** for a Shimano or SRAM drivetrain, value durability, and want a smooth-shifting front gear. The 38T is a great all-around option for most road and gravel setups.

- **Skip it if:** You re on a budget, ride mostly flat terrain, or already have a reliable chainring that fits your needs. In such cases, a more affordable or differently sized chainring may be preferable.

For most **serious cyclists upgrading to a modern drivetrain**, the Race Face RNW104X38BLU is a **strong, well-engineered choice** that justifies its cost with long-term performance.

Details:

Stiff 4mm plate thickness and I-beam construction transfer loads without flexing. Item has been inspected to be in working condition. Chainring BCD: 104. Item may have minor cosmetic blemishes due to being taken out of package.

Appears to have been mounted but never used. Non-threaded bolt holes. Compatible with 9, 10, 11 and 12 speed. Reversible laser etched graphics.

part #: rnw104x38blu prices

• $38.90-$44.99

specifications ribicycl:

• brand: Raceface
• mpn: Rnw104x38blu
• part type: Bcd Bicycle
• color: Blue
• number of teeth: 38 Tooth
• upc: 821973330808

seller ribicycl:

• # reviews: 17635
• rating: 100.0%
• city: Mount Horeb, Wisconsin

returns ribicycl:

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

offer ribicycl:

• options: Ship-to-home
• started: April 14, 2026
• sold: 0
• availability: In Stock
• quantity: 1

general ribicycl:

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

payments ribicycl:

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

shipping ribicycl:

• transit: 2-4 Days
• class: Standard
• type: Fixed
• carrier: USPS
• service: USPS Ground Advantage
• cost: $5.95

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