1. Bicycle Rims For Sale
  2. sku: 17230018242522782
  3. SPEED SHOP 100000386789

51 SPEED SHOP Carbon Aero Handlebar Extensions Rise 2100000386789 75MM

51 Speed Shop 100000386789 Rev Carbon Aero Handlebar Extensions - 75mm Rise Matte Black

( Brand: 51 Speed Shop ), ( Handlebar Type: Aerobar ), ( Color: Black ), ( Compatible Bike Type: Racing Bike, Road Bike, Time Trial/triathlon Bike ), ( Material: Carbon ), ( Set Includes: Aero Bar Extensions Set ), ( Part Type: Handlebars ), ( UPC: 100000386789 )

Review 51 SPEED SHOP Rev Carbon Aero Handlebar Extensions 75mm Rise Matte Black

The **51 100000386789 Carbon Aero Handlebar Extensions (75mm Rise)** are a premium, high-performance upgrade designed to elevate both the aerodynamics and ergonomics of your bicycle, making them an ideal choice for road cyclists, triathletes, and performance-oriented riders seeking a competitive edge. Crafted from advanced **unidirectional carbon fiber**, these extensions deliver an exceptional balance of stiffness, lightweight construction, and aerodynamic efficiency, ensuring minimal drag while maintaining structural integrity under demanding riding conditions. The **75mm rise** provides a subtle yet noticeable upward angle, promoting a more aggressive, forward-leaning position that enhances stability, reduces wind resistance, and optimizes power transfer particularly beneficial for climbs and high-speed efforts. The sleek, aerodynamic profile is meticulously engineered to minimize turbulence, allowing riders to cut through the air with greater efficiency, which translates to noticeable gains in speed and endurance over long distances. Compatible with a wide range of drop handlebars, these extensions feature a **precision-machined interface** that ensures a secure, vibration-dampening connection, reducing fatigue and improving comfort during extended rides. Whether integrated into a carbon or aluminum frame, these extensions are designed to seamlessly blend with modern bike geometry, offering a customizable solution for riders looking to refine their setup without sacrificing performance or aesthetics. Built to withstand the rigors of competitive cycling, they are also resistant to moisture and UV degradation, ensuring longevity and reliability across diverse riding environments. For those prioritizing both speed and precision, these carbon handlebar extensions represent a sophisticated, performance-driven accessory that can transform the dynamics of your ride.

**Pros and Cons of buying a 5110000386789 Carbon Aero Handlebar Extensions (75mm Rise)**

### **Pros**

1. **Lightweight Construction** Made from carbon fiber, these extensions are significantly lighter than aluminum or steel alternatives, reducing overall bike weight and improving handling. This is particularly beneficial for climbs and high-speed riding.

2. **Aerodynamic Design** The aero shape helps reduce wind resistance, which can improve speed and efficiency, especially at higher velocities. This is advantageous for road cyclists, triathletes, or time trialists.

3. **Durability** Carbon fiber is known for its strength-to-weight ratio, meaning these extensions are resistant to bending or warping over time, provided they are installed and used correctly. They can withstand the stresses of aggressive riding without compromising performance.

4. **Compatibility** The 75mm rise is a standard height for many modern road bikes, making these extensions versatile for various frame geometries. They are likely to fit well with aero road bikes, triathlon bikes, or endurance-oriented frames.

5. **Smooth Ride Feel** The carbon material dampens vibrations better than metal, providing a more comfortable ride, especially on rough or uneven surfaces. This can reduce hand fatigue during long rides.

6. **Aesthetic Appeal** The sleek, aerodynamic design adds a premium look to the bike, which may be appealing for riders who prioritize aesthetics alongside performance.

7. **Reduced Stress on Hands and Arms** The rise angle (75mm) can help position the hands in a more natural, forward-leaning position, reducing strain on the wrists and shoulders during long rides.

8. **Compatibility with Drop Bars** These extensions are designed to work seamlessly with drop handlebars, offering a smooth transition between hoods, drops, and tops. This is ideal for riders who use multiple hand positions.

9. **Long-Term Value** High-quality carbon components often retain their value better than cheaper alternatives, making them a worthwhile investment for serious cyclists.

10. **Minimal Maintenance** Unlike metal components, carbon does not rust or corrode, requiring little to no maintenance beyond occasional cleaning to preserve its finish.

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### **Cons**

1. **High Cost** Carbon components are significantly more expensive than aluminum or steel alternatives. For casual riders or those on a tight budget, this may be a prohibitive factor.

2. **Potential for Damage** While durable, carbon is brittle and can crack or shatter if subjected to extreme impact (e.g., a hard crash or dropping the bike). Unlike metal, it does not bend to absorb shock, so damage may not be immediately visible.

3. **Installation Complexity** Carbon extensions require precise installation to ensure they are securely bolted to the stem and handlebars. Improper installation can lead to loosening or misalignment, compromising safety and performance. Professional installation is often recommended.

4. **Weight Sensitivity** While lightweight, the cost-to-weight ratio may not justify the purchase for riders who prioritize weight savings over aerodynamics (e.g., gravel riders or those on budget bikes).

5. **Limited Adjustability** These extensions come in fixed rise heights (75mm in this case). If the rider s preferences or bike setup change, additional extensions or spacers may be needed, adding to the cost.

6. **Compatibility Issues** Not all stems or handlebars may fit perfectly with these extensions. The rider must ensure their current setup is compatible, or they may need to invest in additional hardware (e.g., spacers, adapters).

7. **Resale Value** While carbon retains value, the resale market for high-end components can be unpredictable. The extensions may not recoup their full cost if sold secondhand.

8. **Potential for Overkill** For riders who do not prioritize aerodynamics (e.g., casual riders, mountain bikers, or those on rough terrain), the benefits may not outweigh the cost. The performance gains may be marginal for non-competitive use.

9. **Maintenance Sensitivity** Carbon requires careful cleaning to avoid damaging the surface. Harsh chemicals, abrasive materials, or improper storage (e.g., leaving them in extreme temperatures) can degrade the material over time.

10. **Learning Curve** Riders accustomed to traditional handlebars may need time to adjust to the aero position, which can feel unnatural at first. This adjustment period may reduce initial comfort.

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### **Conclusion**

The **5110000386789 Carbon Aero Handlebar Extensions (75mm rise)** are a high-quality, performance-oriented upgrade suited for serious cyclists, triathletes, or road riders who prioritize aerodynamics, weight savings, and comfort. Their carbon construction offers durability, vibration damping, and a premium feel, but the cost is substantial, and they require careful handling and installation. These extensions are best justified for riders who frequently ride at high speeds, participate in time trials, or seek a competitive edge. For casual or budget-conscious riders, the benefits may not justify the expense, and alternative materials (e.g., aluminum) could offer a more cost-effective solution.

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### **Recommendation**

**Buy these extensions if:**

- You are a competitive road cyclist, triathlete, or time trialist who rides at high speeds and values aerodynamics.

- You already own a lightweight, high-performance bike and want to optimize its handling.

- You are willing to invest in premium components that enhance ride quality and efficiency.

- Your current setup is compatible, and you can afford professional installation to ensure safety.

**Avoid these extensions if:**

- You are a casual rider or primarily ride on rough terrain where aerodynamics are less critical.

- You are on a tight budget and can achieve similar benefits with more affordable alternatives (e.g., aluminum extensions).

- You are unsure about your long-term commitment to the bike or riding style, as carbon components are a significant investment.

- You lack experience with carbon components and are uncomfortable with their maintenance or potential fragility.

**Alternative Considerations:**

- If cost is a concern, explore **aluminum aero extensions** (e.g., from brands like Ergon or Cane Creek), which offer a balance of performance and affordability.

- For riders who want to experiment before committing, consider **removable aero extensions** that can be swapped out for traditional bars.

- Ensure your **stem and handlebars are compatible** some brands require specific spacers or adapters for proper fit.

Ultimately, these extensions are a worthwhile upgrade for the right rider, but they are not a necessity for everyone. Carefully weigh your priorities, budget, and riding goals before making a purchase.

Details:

3D shape with 15mm offset grip provides comfort across rotational configurations. Designed for a moderate hand positions to optimize arm pad contact and aerodynamic performance. MSRP: $189.00. 30 deg grip angle provides a neutral wrist orientation, promoting upper body comfort.

Carbon fiber construction provides ideal strength to weight ratio. Matte-black paint for a subtle aesthetics.

specifications ribicycl:

  • brand: 51 Speed Shop
  • handlebar type: Aerobar
  • color: Black
  • compatible bike type: Racing Bike, Road Bike, Time Trial/triathlon Bike
  • material: Carbon
  • set includes: Aero Bar Extensions Set
  • part type: Handlebars
  • upc: 100000386789

general ribicycl:

  • condition: Used
  • Cycling > Bicycle Components Parts > Handlebars

offer ribicycl:

  • sold: 0
  • quantity: 1
  • started: March 22, 2026
  • availability: In Stock
  • options: Ship-to-home

seller ribicycl:

  • city: Ladera Ranch, California
  • # reviews: 396
  • rating: 97.5%

payments ribicycl:

  • other
  • wallet: Paypal
  • credit card: Visa

shipping ribicycl:

  • cost: $7.00
  • transit: 4-9 Days
  • class: Standard
  • type: Fixed
  • service: UPS Ground
  • carrier: UPS

returns ribicycl:

  • method: Money back
  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days
handlebar type: aerobar, compatible bike type: racing bike, road bike, time trial/triathlon bike, set includes: aero bar extensions set, part type: handlebars,
category: sporting goods > cycling > bicycle components parts > handlebars, color: black, material: carbon, sku: 17230018242522782,
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