FSA Stem Clamp Steerer 840031061485 Sl 20 90MM 31.8MM 1-1/8 Black/gray

( Brand: Fsa ), ( Part Type: Stem Clamp ), ( Color: Black ), ( Stem Type: Threadless ), ( Set Includes: Stem ), ( Material: Aluminum ), ( Item Length: 90 Mm ), ( Steerer Tube Diameter: 1 1/8 In ), ( Unit Type: Unit ), ( Clamp Diameter: 31.8 Mm ), ( Stem Angle: Deg ), ( Compatible Bike Type: Mountain Bike, Road Bike ), ( Country Of Origin: Taiwan ), ( Item Weight: 100-199 G ), ( UPC: 840031061485 )

Review FSA Sl k Drop Stem 20 90mm Length 31.8mm Clamp 1-1/8 Inch Steerer Black/gray

The **FSA 840031061485 SL-K STEM 20 90mm (31.8mm) Clamp 1-1/8" Steerer Black/Gray** is a high-performance, precision-engineered component designed for cyclists seeking a seamless integration between their fork and stem, delivering both aesthetic appeal and mechanical reliability. Crafted from FSA s signature **SL-K (Super Light King)** alloy, this stem is engineered to be exceptionally lightweight yet robust, ensuring durability under heavy loads while maintaining a sleek, modern look. The **20mm clamp diameter** provides a secure, snug fit around the steerer tube, reducing slippage and enhancing stability, particularly beneficial for aggressive riding styles or high-performance setups. The **90mm length** offers a balanced reach, ideal for riders who prefer a more upright or aggressive geometry, allowing for precise handling and control without compromising comfort. The **31.8mm steerer tube compatibility** ensures a perfect match for modern road, gravel, or endurance bikes equipped with this standard, while the **1-1/8" clamp** accommodates a wide range of steerer diameters, making it versatile for various frame designs. Finished in a striking **black and gray colorway**, this stem not only elevates the visual appeal of your bike but also complements a wide range of frame and component aesthetics. Whether you re chasing speed on the road, tackling technical terrain, or simply refining your ride for efficiency, the FSA SL-K stem combines cutting-edge engineering with a refined design to deliver an uncompromising riding experience. Its **dropouts** are precision-machined for a frictionless fit, and the **integrated bearings** ensure smooth rotation, reducing wear and tear on both the stem and steerer. Built to withstand the demands of competitive riding, this component is a testament to FSA s commitment to innovation, quality, and performance, making it a standout choice for cyclists who demand the best from their equipment.

### **Pros and Cons of buying a FSA 840031061485 (SL-K STEM 20, 90mm, 31.8mm Clamp, 1-1/8" Steerer, Black/Gray)**

1. **High-Quality Build** FSA (FSA Group) is a well-respected brand known for producing durable, high-performance bicycle components. This stem is designed for serious cyclists, offering a strong and reliable construction.

2. **Adjustable Reach and Height** The SL-K STEM 20 features a 20mm rise, allowing for customizable ergonomics to suit different riding positions. This can help reduce strain on the wrists and neck, improving comfort on long rides.

3. **Wide Compatibility** The 31.8mm clamp diameter ensures compatibility with a variety of modern drop bar handlebars, while the 1-1/8" steerer tube fits most modern forks, including those with 1-1/8" or 1-1/4" steerer tubes (though adapters may be needed for the latter).

4. **Durable Materials** The stem appears to be made from aluminum or a similar lightweight yet strong alloy, which balances weight and rigidity effectively.

5. **Aesthetic Appeal** The black/gray color scheme is sleek and professional, making it a good choice for riders who prioritize both function and style.

6. **Reliability for Racing and Fitness Riding** Given its construction, this stem is suitable for road cycling, fitness rides, and potentially light gravel or commuting, though it may not be ideal for extreme off-road conditions.

7. **Easy Installation** FSA components are generally straightforward to install, and the stem s design suggests it should be compatible with standard tools and techniques.

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1. **Limited Off-Road Suitability** While this stem is fine for road cycling, it may not be ideal for aggressive off-road or mountain biking due to its drop-bar design and potential lack of reinforcement for rough terrain.

2. **Price Point** FSA components are typically mid-to-high-end, and this stem may not offer the best value compared to budget alternatives from other brands (e.g., Shimano, Cane Creek, or even some entry-level FSA models).

3. **Weight Consideration** While not excessively heavy, aluminum stems can be slightly heavier than carbon fiber alternatives, which some performance-oriented riders may prefer for speed.

4. **Potential Overkill for Casual Riders** If you re a casual rider or commuter, a more affordable stem from a different brand might suffice without sacrificing quality.

5. **Compatibility Caveats** Ensure your fork and handlebars match the steerer and clamp sizes. For example, if your fork uses a 1-1/4" steerer, you ll need an adapter, which could add to the cost.

6. **Limited Customization** Unlike some stems with adjustable rise or length, this model has a fixed 20mm rise, which may not be ideal if you need significant ergonomic adjustments.

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The **FSA 840031061485 SL-K STEM 20** is a solid choice for cyclists who prioritize quality, durability, and adjustability in a stem. It s well-suited for road cycling, fitness rides, and commuting, offering a good balance of performance and reliability. However, it may not be the best option for off-road use or riders on a tight budget seeking more budget-friendly alternatives.

If you re building a road bike or upgrading an existing setup and can justify the investment in a reputable brand like FSA, this stem is a worthwhile purchase. For casual riders or those looking to save money, exploring other brands or models with similar specifications might be more practical.

- You re assembling or upgrading a road bike and want a durable, high-quality stem.

- You value adjustability (20mm rise) and compatibility with modern drop bars.

- You re willing to pay for a trusted brand with a reputation for reliability.

- You re on a budget and can find equally good stems from other brands (e.g., Shimano, Cane Creek, or even carbon options).

- You plan to use the stem for off-road or extreme conditions, where a more rugged design might be preferable.

- You need more customization options (e.g., adjustable length or rise).

Ultimately, this stem is a strong, functional choice for serious cyclists who don t need the lightest or most budget-friendly option.

Details:

Model: SL-K Drop Stem OS-131. I describe items accurately and honestly. I'm just a message away and happy to help. The anodized black finish is highly intact with excellent gloss.

Hardware Threads: All four face plate bolts and both steerer clamp are clean, free of rounding, the threads smooth. Color/Graphics: Sleek gloss black finish with contrasting gray/white web-pattern accent graphics on the top body and clean FSA/SL-K logos face plate. Specifications:: Brand: Full Speed Ahead FSA. Check my reviews.

length : 90mm. Constructed from premium 3D-forged and CNC-machined AL2014 aluminum, it delivers a highly rigid, race-ready platform without adding unnecessary bulk to your build. Skip the gamble. This is a pre-owned Full Speed Ahead FSA SL-K Drop Stem designed specifically to help riders achieve an aggressive, low-profile cockpit position.

I pack with care and ship speed. Condition: Excellent Used condition: The stem exhibits minimal signs of cosmetic wear. Handlebar Clamp Diameter: 31.8mm. Graphics are crisp and bold.

Ready to bolt on and ride.

specifications ribicycl:

• brand: Fsa
• part type: Stem Clamp
• color: Black
• stem type: Threadless
• set includes: Stem
• material: Aluminum
• item length: 90 Mm
• steerer tube diameter: 1 1/8 In
• unit type: Unit
• clamp diameter: 31.8 Mm
• stem angle: Deg
• compatible bike type: Mountain Bike, Road Bike
• country of origin: Taiwan
• item weight: 100-199 G
• upc: 840031061485

offer ribicycl:

• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: May 18, 2026
• best offers: True

shipping ribicycl:

• cost: $10.50
• class: Standard, Economy
• carrier: USPS, UPS, FedEx
• type: Fixed
• transit: 4-9 Days
• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy

seller ribicycl:

• rating: 100.0%
• city: Fairfield, California
• # reviews: 1559

general ribicycl:

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

payments ribicycl:

• other
• credit card: Discover
• wallet: Google-pay

returns ribicycl:

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

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