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  2. sku: 16544449191243752
  3. TREK 326500

TREK Triathlon Bike Mono Spacer 15MM W326500

W326500 Trek 326500 Speed Concept Gen 2 Triathlon Bike 15mm Mono Spacer Part

( Brand: Trek ), ( Manufacturer Part Number: 326500 ), ( Part Type: Bike ), ( Handlebar Type: Aerobar ), ( Custom Bundle: No ), ( Item Height: 15 Mm ), ( Color: Black ), ( Compatible Bike Type: Time Trial/triathlon Bike ), ( Material: Aluminum )

Review TREK Speed Concept Gen Triathlon Bike 15mm Mono Spacer Part

The Trek 326500 Gen Triathlon Bike, equipped with a **15mm mono spacer** and bearing the model designation **W326500**, is a high-performance, aerodynamic road bike meticulously engineered for triathletes and competitive cyclists seeking speed, efficiency, and precision in every race. Designed with the demands of multisport endurance in mind, this bike combines Trek s signature craftsmanship with cutting-edge aerodynamics to minimize drag and maximize power transfer, allowing riders to dominate transitions and maintain a relentless pace across all three disciplines. The frame, crafted from Trek s proprietary **TwinWall Carbon** technology, features a lightweight yet rigid construction that absorbs road imperfections while delivering unmatched stiffness for optimal energy efficiency. The **15mm mono spacer** on the bottom bracket ensures a seamless, streamlined setup, reducing rotational mass and enhancing pedal efficiency critical for triathletes who rely on every watt of power during the bike leg.

The W326500 s geometry is finely tuned for an aggressive, aerodynamic position, with a compact head tube and a slightly extended reach to promote an aerodynamic posture without sacrificing control. The **carbon fork** is integrated with Trek s **Disc Brake System (TBS)**, offering both the performance benefits of disc brakes for wet or technical conditions and the lightweight advantage of rim brakes when desired, all while maintaining a clean, streamlined look. The **110mm BB shell** and **12x142mm bottom bracket** accommodate a wide range of crankset options, from ultra-light triathlon cranks to more versatile road setups, ensuring compatibility with the rider s preferred drivetrain. The bike s **Trek IsoSpeed ** technology further enhances comfort and efficiency by isolating the rider from road vibrations, allowing for sustained high-speed performance over long distances.

For those who demand the utmost in aerodynamics, the W326500 can be paired with Trek s **AeroKit**, featuring a **carbon seatpost** and **aero wheels** that reduce drag and improve stability at high speeds. The bike s **Trek Race Carbon** frame is not only lightweight but also features strategic cutouts and optimized tubing to reduce weight without compromising strength. Whether tackling a sprint triathlon or a full Ironman, this bike is built to handle the rigors of competition with precision, ensuring that riders can focus on their performance rather than their equipment. With its blend of innovation, aerodynamics, and Trek s reputation for reliability, the 326500 Gen Triathlon Bike stands as a premier choice for serious triathletes aiming to shave seconds off their times and push their limits.

### Pros of buying a Trek 326500 Gen 3 Triathlon Bike with 15mm Mono Spacer

1. **Performance-Oriented Design**: The Trek 326500 Gen 3 is engineered as a triathlon bike, meaning it prioritizes aerodynamics, efficiency, and speed. The aggressive geometry is optimized for forward-leaning positions, reducing wind resistance and improving power transfer.

2. **Lightweight Construction**: Triathlon bikes are inherently lighter than road bikes due to their specialized design and materials. The 326500 Gen 3 features a lightweight frame, which enhances agility and makes it easier to accelerate quickly, especially useful in transitions during triathlons.

3. **Aerodynamic Features**: The bike includes aerodynamic elements such as aero wheels, a streamlined fork, and aero handlebars. These features reduce drag and improve speed, which is critical for triathletes looking to shave seconds off their time.

4. **Compatibility with Triathlon-Specific Components**: The bike is designed to work seamlessly with triathlon-specific components like aero bars, clip-on bars, and triathlon-specific tires. The 15mm mono spacer is particularly useful for triathletes, as it allows for a more aggressive, aerodynamic position on the bike, reducing wind resistance during the bike leg of a race.

5. **Durability**: Trek is known for producing durable frames and components. The 326500 Gen 3 is built to withstand the rigors of training and racing, including the high stresses placed on triathlon bikes during aggressive riding positions.

6. **Adjustability**: The mono spacer allows for fine-tuning the reach and position on the bike, enabling riders to optimize their fit for maximum comfort and performance. This is particularly beneficial for riders who may not have a perfect fit with standard spacers.

7. **Resale Value**: Trek bikes generally hold their value well, and the 326500 Gen 3, being a newer model, may retain a higher resale value compared to older models or other brands.

8. **Warranty and Support**: Trek offers robust warranty coverage and access to a network of authorized dealers and service centers. This ensures that you have reliable support and maintenance options if issues arise.

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### Cons of buying a Trek 326500 Gen 3 Triathlon Bike with 15mm Mono Spacer

1. **Limited Comfort**: Triathlon bikes are inherently less comfortable than traditional road bikes due to their aggressive, forward-leaning geometry. Long rides, especially on rough terrain or in less-than-ideal positions, can lead to discomfort or even pain in the neck, shoulders, or lower back.

2. **Less Versatility**: The aggressive design of a triathlon bike makes it less versatile for casual riding or non-triathlon activities. It may not be as comfortable or efficient for riding on mixed terrain, gravel, or for long-distance rides where a more upright position is preferred.

3. **Higher Cost**: Triathlon bikes, especially high-performance models like the 326500 Gen 3, tend to be more expensive than standard road bikes. The additional cost reflects the specialized components and materials used to optimize performance for triathletes.

4. **Maintenance Requirements**: The aggressive riding positions and high-performance components can place additional stress on the bike and its parts. This may result in higher maintenance costs over time, including more frequent tune-ups, tire replacements, or potential frame repairs.

5. **Learning Curve**: Transitioning from a road bike to a triathlon bike requires adjustment. Riders may need time to adapt to the new geometry, handling characteristics, and riding position, which can be challenging initially.

6. **Limited Upright Positioning**: The bike s design does not accommodate an upright riding position well. This can be a drawback for riders who prefer a more relaxed posture, especially on longer rides or during recovery spins.

7. **Potential for Overkill**: If you are not a serious triathlete or do not prioritize speed and aerodynamics, the features of this bike may be unnecessary. For recreational riders or those who primarily focus on endurance, a more versatile road bike might be a better choice.

8. **Spacer Limitations**: While the 15mm mono spacer offers a more aggressive position, it may not suit everyone. Riders with shorter arms or specific biomechanical needs might find it too extreme, requiring additional spacers or adjustments to achieve a comfortable fit.

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### Conclusion and Recommendation

The Trek 326500 Gen 3 triathlon bike with a 15mm mono spacer is an excellent choice for dedicated triathletes who prioritize speed, aerodynamics, and performance. Its lightweight design, aggressive geometry, and aerodynamic features make it ideal for racing and training in triathlon-specific conditions. The mono spacer further enhances its suitability for triathletes by allowing a more aggressive, low-drag position.

However, this bike is not ideal for everyone. Its aggressive design and lack of versatility make it less suitable for casual riders, those who prefer a more upright position, or individuals who engage in a variety of riding styles beyond triathlon. Additionally, the higher cost and maintenance requirements may be prohibitive for some.

**Recommendation**:

- **Buy the Trek 326500 Gen 3 with 15mm mono spacer** if you are a serious triathlete, prioritize speed and aerodynamics, and are comfortable with the aggressive riding position. Ensure that you have tried the bike in person to confirm it suits your fit and riding style.

- **Consider an alternative** if you are not a triathlete or do not prioritize the features of a triathlon bike. In that case, a versatile road bike or a hybrid bike might be a better fit. If you are unsure, test ride the Trek 326500 Gen 3 and compare it with other options to make an informed decision. Additionally, consult with a professional bike fitter to optimize your position and ensure the mono spacer aligns with your needs.

Details:

Trek Speed Concept Gen 2 15mm spacer. Used but 100% functional. Always torqued with a torque wrench. Part No W326500.

part #: 326500 prices

  • $15.00-$19.00

specifications ribicycl:

  • brand: Trek
  • mpn: 326500
  • part type: Bike
  • handlebar type: Aerobar
  • custom bundle: No
  • item height: 15 Mm
  • color: Black
  • compatible bike type: Time Trial/triathlon Bike
  • material: Aluminum

offer ribicycl:

  • quantity: 1
  • sold: 0
  • started: February 2, 2026
  • availability: In Stock
  • options: Ship-to-home

general ribicycl:

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

payments ribicycl:

  • other
  • wallet: Paypal
  • credit card: Diners-club

shipping ribicycl:

  • type: Fixed
  • carrier: USPS
  • transit: 4-10 Days
  • class: Standard
  • cost: $6.99
  • service: USPS First Class

returns ribicycl:

  • policy: No Returns

seller ribicycl:

  • rating: 100.0%
  • city: Clermont, Florida
  • # reviews: 1203
part type: bike, handlebar type: aerobar, custom bundle: no, item height: 15 mm, compatible bike type: time trial/triathlon bike,
category: sporting goods > cycling > bicycle components parts > handlebars, color: black, material: aluminum, sku: 16544449191243752,
Trek 326500 Is Similar To:
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5 offers $15.00–$19.00 USD
  • New other (see details). Offer #1 priced at $19.00 + $0.00 shipping estimate = $19.00* total. FREE SHIPPING
  • New. Offer #2 priced at $15.00 + $7.11 shipping estimate = $22.11* total. This is an unused spacer for the speed concept.+$7.11 shipping
  • Used. Offer #3 priced at $17.00 + $5.97 shipping estimate = $22.97* total. Used condition.+$5.97 shipping
  • New. Offer #4 priced at $99.95 + $0.00 shipping estimate = $99.95* total. With adjustable stack and tilt options, it provides precise rider positioning for optimal performance against the clock. This 40 cm Non-UCI compliant base bar includes a complete set of spacers and hardware to customize your fit.FREE SHIPPING
  • New. Offer #5 priced at $15.00 + $5.48 shipping estimate = $20.48* total. Made by the trusted brand Bontrager, this spacer is a high-quality component that can help improve the overall performance of a cyclist's bike during intense races or training sessions. The Bontrager Trek Speed Concept Aerobar 15mm Mono Spacer # is a sleek black aluminum stem designed specifically for Time Trial/Triathlon bikes.+$5.48 shipping

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