REDSHIFT RS-40-07 Shockstop Suspension Bike Stem Threadless 80MM /-6 31.8 1/8

( Brand: Redshift ), ( Manufacturer Part Number: RS-40-07 ), ( Part Type: Bike Stem ), ( Set Includes: Stem ), ( Stem Type: Threadless ), ( Color: Black ), ( Material: Aluminum ), ( Clamp Diameter: 31.8 Mm ), ( Country Of Origin: Taiwan )

Review REDSHIFT Shockstop Suspension Bike Stem 80mm /-6 31.8 1/8 Threadless Black

The **Redshift RS-40-07 ShockStop Suspension Bike Stem** is a high-performance, adjustable stem designed to elevate your riding experience by seamlessly integrating suspension technology into your bike s handling. Engineered for aggressive descents, technical trails, and demanding off-road conditions, this stem features a **70mm drop** (with a **10mm adjustment range** via the integrated ShockStop system) to provide precise, responsive control over your bike s front end. The **80mm length** offers a balanced reach, ideal for riders seeking a sporty yet stable platform, while the **31.8mm clamp diameter** ensures compatibility with a wide range of handlebars, including those with a **1/8-inch threadless** interface. Crafted from durable aluminum, the stem is both lightweight and robust, capable of absorbing impacts and vibrations that would otherwise transfer directly to your hands and arms, reducing fatigue on long rides or rough terrain.

The **ShockStop suspension system** is the standout feature of this stem, allowing for **adjustable damping** to fine-tune stiffness and compliance based on rider preference and trail conditions. This innovative design enables you to dial in a firmer setup for aggressive riding or a softer feel for smoother, more forgiving descents, all without sacrificing rigidity when needed. The **smooth, linear adjustment** ensures no play or sloppiness, maintaining a locked-in feel when the suspension is fully engaged. Additionally, the stem s **threadless clamp** provides a secure, vibration-dampening grip on your handlebars, enhancing comfort and control while minimizing handlebar wobble.

Perfect for **downhill, enduro, and freeride riding**, the RS-40-07 is built to withstand the rigors of high-speed descents and technical obstacles. Its **durable construction** and **precision engineering** make it a standout choice for riders who demand both performance and adaptability. Whether you're carving through rocky singletrack or bombing down steep, technical descents, this stem delivers the **responsiveness, control, and comfort** needed to push your limits with confidence. Ideal for those who refuse to compromise on handling, the Redshift RS-40-07 is a game-changer for riders seeking a suspension stem that adapts as dynamically as they do.

The **Redshift RS-40-07 ShockStop suspension bike stem** (80mm rise, -6 fork rake, 31.8mm threadless) is a popular choice for downhill and enduro riding, but it has distinct advantages and drawbacks depending on your needs. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Durability and Strength**

The RS-40-07 is built for aggressive riding, featuring a **7075-T6 aluminum alloy** construction with a **butterfly design** that distributes stress evenly. This makes it highly resistant to impacts, bending, and fatigue critical for downhill and enduro riders who subject stems to extreme forces. The **ShockStop technology** (integrated shock absorber) further enhances durability by reducing stress on the stem and handlebar interface.

2. **ShockStop Integration**

The built-in **ShockStop shock absorber** reduces vibrations and impacts transmitted from the fork to the rider s hands and arms. This is particularly beneficial for long descents, as it improves comfort and reduces hand fatigue. The shock can be adjusted for preload (via the top cap) and rebound damping (via the side screw), allowing for fine-tuning to rider preference.

3. **Adjustable Fork Rake (-6 )**

The -6 fork rake is optimized for **aggressive downhill geometry**, providing a more forward-leaning position that enhances stability at high speeds and in technical terrain. This is ideal for riders who prioritize control and responsiveness over a more upright, relaxed position.

4. **80mm Rise**

The 80mm rise is generous for downhill riding, allowing for a **lower handlebar position** that improves aerodynamics and control during fast descents. This height is well-suited for riders who want a more aggressive, forward-leaning stance without sacrificing reach.

5. **Threadless Clamp System**

The **31.8mm threadless clamp** is a standard in modern mountain biking, offering a secure and adjustable fit. It allows for easy installation and removal, and the clamp itself is robust, reducing the risk of slippage or damage during rough riding.

6. **Compatibility with Wide Handlebar Options**

The stem s design accommodates **wide handlebars** (common in downhill bikes), which provide better leverage for aggressive cornering and control. This is a key feature for riders who use bars like the **Fox Rampage** or **Yeti SB100**.

7. **Lightweight for Its Class**

While not as light as carbon stems, the RS-40-07 is relatively lightweight for a high-performance aluminum stem, weighing around **300 350g**. This is a reasonable trade-off for its durability and functionality.

8. **Warranty and Brand Reputation**

Redshift is a well-established brand in the mountain biking industry, known for its **durable, high-performance components**. The stem comes with a **lifetime warranty against manufacturing defects**, which is a strong selling point for riders investing in aggressive riding gear.

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### **Cons**

1. **Limited Adjustability**

The stem s **fixed rise and rake** (-6 ) may not suit riders who prefer a more neutral or upright position. If you re transitioning from a cross-country or enduro bike with a different geometry, the aggressive setup might feel too forward-leaning or uncomfortable. Some riders may need to adjust their bike s geometry or use spacers to achieve a more balanced feel.

2. **No Carbon Option**

The RS-40-07 is **aluminum-only**, which means it lacks the weight savings and stiffness of a carbon stem. While the weight difference is modest ( 50 100g), carbon stems (like the **Fox Rampage** or **Yeti SB100**) offer better vibration damping and a more refined feel for some riders.

3. **ShockStop Limitations**

While the ShockStop system is effective, it **cannot replace a full suspension fork s travel**. The stem s shock is designed to reduce hand fatigue and vibrations, but it won t absorb the same level of impact as a front suspension fork. For riders who prioritize extreme suspension travel, a stem-mounted shock is a secondary benefit.

4. **Price**

The RS-40-07 is **not cheap**, typically retailing for **$200 $250**. While this is reasonable for a high-performance aluminum stem with ShockStop, it may be overkill for riders who don t need the aggressive downhill setup or the shock integration. For cross-country or trail riders, a simpler stem (e.g., **Cane Creek, Race Face, or Fox**) may offer better value.

5. **Installation Complexity**

The **threadless clamp system** requires proper installation to avoid issues like **clamp slippage or handlebar damage**. Unlike quill stems, threadless stems need precise alignment and tightening to ensure a secure fit. Improper installation can lead to handlebar wobble or even breakage under heavy loads.

6. **Aesthetics and Customization**

The RS-40-07 has a **functional, utilitarian design** with minimal aesthetic appeal. Riders who prioritize customization (e.g., painted stems, unique colors) may find the stock finish (usually matte black or silver) limiting. While Redshift offers some color options, they are not as extensive as brands like **Yeti or Fox**.

7. **Potential for Overkill**

If you re not primarily a downhill rider but occasionally ride aggressive trails, the **RS-40-07 may be more stem than needed**. A **less aggressive stem** (e.g., 60 70mm rise, 0 or 2 rake) might suffice for enduro or trail riding while still offering durability.

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### **Conclusion**

The **Redshift RS-40-07 ShockStop stem** is an excellent choice for **downhill and aggressive enduro riders** who prioritize **durability, shock absorption, and a forward-leaning geometry**. Its **ShockStop integration, 7075-T6 aluminum construction, and -6 rake** make it one of the best stems for high-speed, technical descents. However, it is **not ideal** for riders who prefer a more neutral or upright position, those who prioritize carbon stems for weight savings, or those who don t need the aggressive setup.

If you re a **downhill rider** or someone who frequently rides **technical, fast trails**, this stem will significantly enhance your comfort and control. For **cross-country, trail, or enduro riders** who don t need the extreme setup, a more versatile stem (e.g., **Fox Rampage, Yeti SB100, or Cane Creek**) may be a better fit.

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### **Recommendation**

- You ride **downhill or aggressive enduro** and need a stem that can handle extreme forces.

- You want **ShockStop integration** to reduce hand fatigue on long descents.

- You prefer a **forward-leaning, stable geometry** (-6 rake) for high-speed control.

- You prioritize **durability and longevity** over weight savings.

- You ride **cross-country, trail, or enduro** and don t need the aggressive setup.

- You prefer a **carbon stem** for better vibration damping and weight.

- You want **more adjustability** in rise/rake (e.g., a stem with spacers or a modular system).

- You re on a **tighter budget** and can find a similarly durable stem at a lower price.

For most **downhill riders**, the RS-40-07 is a **top-tier choice** that justifies its cost. For other disciplines, a more versatile stem may offer better overall performance.

Details:

Comes with all the bushings and that. In great shape. This was a new take off.

part #: rs4007 prices

• $135.00-$179.95

specifications ribicycl:

• brand: Redshift
• mpn: Rs-40-07
• part type: Bike Stem
• set includes: Stem
• stem type: Threadless
• color: Black
• material: Aluminum
• clamp diameter: 31.8 Mm
• country of origin: Taiwan

shipping ribicycl:

• transit: 5-11 Days
• carrier: USPS
• cost: $0.00
• service: USPS Ground Advantage
• type: Fixed
• class: Standard

general ribicycl:

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

offer ribicycl:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• best offers: True
• started: March 5, 2026

returns ribicycl:

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

seller ribicycl:

• # reviews: 1575
• city: Corvallis, Oregon
• rating: 100.0%

payments ribicycl:

• wallet: Google-pay
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• credit card: Discover

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