FOX 80304157 Mtb Coil 400X2.80LB

( Brand: Fox ), ( Manufacturer Part Number: 80304157 ), ( Part Type: Coil ), ( Shock Type: Coil Shock ), ( Unit Type: Lb ), ( Color: Black ), ( Compatible Bike Type: Mountain Bike ), ( Material: Steel ), ( Set Includes: Coil Spring ), ( Item Length: 2.8 ), ( Item Width: 450lb )

Review FOX 400x2.80lb Mtb Coil

The **Fox 36 Float Performance Shock** (model number 80304157), a 400mm travel coil spring suspension designed for modern mountain bikes, represents the pinnacle of Fox s engineering prowess in the realm of high-performance off-road riding. Engineered to deliver an unparalleled blend of comfort, control, and responsiveness, this shock is a cornerstone for aggressive trail, enduro, and downhill riding, where riders demand both durability and precision. The **400mm travel** provides ample stroke to absorb the harshest impacts whether it s a technical descent through rocky singletrack, a heavy hit from a jump, or the relentless pounding of a long, technical downhill while maintaining a nimble, bike-like feel. At its core, the 36 Float Performance Shock features **Fox s proprietary 36mm coil spring**, a high-rate, high-quality coil that offers a progressive tuning profile, ensuring a balance between plush comfort and firm feedback. This coil design minimizes sag while maximizing energy return, allowing riders to maintain confidence in their bike s handling without sacrificing the shock s ability to soak up rough terrain.

The **coil spring configuration** is complemented by Fox s **Dual Path Adjustable Rebound (DPAR) system**, which provides independent control over rebound damping in both the high-speed and low-speed ranges. This dual-path design allows riders to fine-tune the shock s response to fine-tune their riding style whether they prefer a snappy, aggressive rebound for quick pedal strokes or a smoother, more controlled feel for technical descents. The **adjustable rebound** ensures that the shock can adapt to varying terrain conditions, from fast, flowing trails to gnarly, root-filled descents, without compromising on performance. Additionally, the shock incorporates **Fox s Float Technology**, which utilizes a sealed, nitrogen-charged chamber to provide consistent performance across a wide range of temperatures and pressures. This ensures that the shock remains reliable and responsive, even in extreme conditions, where traditional air shocks might suffer from inconsistent damping.

Built to withstand the rigors of extreme riding, the **Fox 36 Float Performance Shock** is constructed from high-grade materials, including a **durable aluminum housing** and a **robust coil spring assembly** that resists fatigue and deformation over thousands of miles. The shock s **sealed, maintenance-free design** eliminates the need for frequent adjustments or fluid top-offs, making it a low-fuss solution for riders who demand performance without the hassle. The **sleek, aerodynamic coil spring** not only enhances the bike s aesthetics but also contributes to a more compact, efficient packaging, reducing interference with other components like pedals or tires. Whether paired with a hardtail or a full-suspension enduro rig, this shock delivers a **smooth, controlled, and engaging ride**, making it an ideal choice for riders who push their bikes to the limit while seeking the ultimate in comfort and control.

For those seeking a **high-performance, coil-spring suspension solution**, the Fox 36 Float Performance Shock stands out as a benchmark in the industry. Its **400mm travel** makes it suitable for demanding downhill and enduro applications, while its **adjustable rebound, progressive coil tuning, and Float Technology** ensure that it remains a versatile and reliable component for riders of all skill levels. Whether tackling a technical climb, a fast descent, or a series of jumps, this shock provides the **precision, comfort, and durability** needed to conquer even the most challenging trails with confidence.

### **Pros and Cons of buying a Fox 36 Factory 400 Coil Shock (Model 80304157, 400mm Travel, 2.80" MTB)**

#### **Pros**

1. **High-Quality Build and Durability**

The Fox 36 Factory series is known for its robust construction, using high-grade materials like forged aluminum and reinforced internals. This makes it highly durable for aggressive riding, including downhill, enduro, and freeride disciplines.

2. **Adjustable Rebound and Compression**

The shock offers precise tuning options, including adjustable rebound (via a dial) and compression (low-speed and high-speed). This allows riders to fine-tune performance for different terrains, rider weights, and riding styles, improving control and comfort.

3. **Sealed Air Spring (SAS) Technology**

The SAS system provides consistent, reliable performance without the need for frequent air pressure adjustments. This is particularly useful for riders who frequently switch between different bikes or terrains.

4. **Wide Travel (400mm) for Aggressive Riding**

At 400mm of travel, this shock is well-suited for extreme downhill and freeride applications where deep, aggressive descents are common. The long travel helps absorb large impacts, reducing rider fatigue and improving stability.

5. **Fox s Reputation for Reliability**

Fox is a trusted brand in the mountain biking industry, known for producing shocks that last under heavy use. Their after-sales support and availability of replacement parts are strong points.

6. **Compatibility with High-Performance Forks**

The Fox 36 Factory works well with other high-end Fox forks (e.g., 36 Factory, Elastocharger), creating a balanced suspension setup. This is ideal for riders who prioritize performance consistency across their entire suspension system.

7. **Good for Heavy Riders**

The 2.80" size (likely referring to the axle width or frame compatibility) suggests it s designed for wider, more stable bikes, which can better support heavier riders without compromising performance.

8. **Adjustable Sag Settings**

The ability to adjust sag (via air pressure or mechanical linkage) ensures the shock can be optimized for the rider s weight and riding style, improving efficiency and control.

9. **Minimal Maintenance Requirements**

Compared to older shock models, modern Fox shocks require less frequent maintenance, thanks to improved sealing and internal design. This reduces downtime and costs over the shock s lifespan.

10. **Resale Value**

Fox shocks, especially high-end models like the 36 Factory, retain their value well, making them a solid long-term investment.

---

#### **Cons**

1. **High Cost**

The Fox 36 Factory is a premium shock, and its price reflects that. For casual or recreational riders, the cost may not justify the performance gains, especially if they don t frequently push the limits of their bike.

2. **Complexity for Beginners**

The extensive tuning options (rebound, compression, sag) can be overwhelming for new riders or those unfamiliar with suspension setup. Incorrect adjustments can lead to poor performance or even damage to the shock.

3. **Weight**

Like most high-performance shocks, the Fox 36 Factory is relatively heavy. This can slightly reduce pedal efficiency and maneuverability, though the impact is usually negligible on modern bikes.

4. **Limited Off-Road Versatility**

While excellent for downhill and freeride, the 400mm travel may feel excessive for cross-country or trail riding, where shorter travel (e.g., 120-150mm) is more efficient. This shock is best suited for aggressive riding styles.

5. **Potential for Overkill**

If the rider doesn t frequently engage in extreme descents or high-speed jumps, the extra travel and complexity may not be necessary. A mid-range shock (e.g., Fox Float or RockShox Deluxe) might suffice for less demanding use.

6. **Service and Repair Costs**

Fox shocks require professional servicing every few years to maintain optimal performance. Labor and part costs can add up, especially if the rider is not mechanically inclined.

7. **Compatibility Issues**

While the 2.80" size suggests it fits wider bikes, compatibility depends on the specific frame and fork setup. Some bikes may require additional spacers or modifications, adding to the cost or complexity of installation.

8. **Learning Curve for Tuning**

Achieving the best performance requires understanding how to adjust rebound, compression, and sag. Misadjustments can lead to a harsh ride or reduced shock lifespan. Riders may need to experiment or consult a professional to dial it in correctly.

9. **Environmental Sensitivity**

Fox shocks are sensitive to temperature and humidity changes, which can affect performance. Riders in extreme climates may need to adjust settings more frequently or invest in additional accessories (e.g., shock covers).

10. **Market Availability and Lead Times**

High-demand models like the Fox 36 Factory may have long lead times or limited availability, especially during peak seasons. This could delay purchases or require pre-ordering.

---

### **Conclusion**

The Fox 36 Factory 400mm coil shock is one of the best options available for aggressive downhill, freeride, and enduro riding. Its superior build quality, adjustability, and reliability make it a top-tier choice for riders who demand the most from their suspension. However, the high cost, complexity, and specialized use case mean it may not be the best fit for casual riders or those who prioritize versatility over extreme performance.

For riders who frequently tackle steep, technical descents, jumps, and high-speed trails, the Fox 36 Factory is an excellent investment. It will significantly enhance ride quality, control, and durability in demanding conditions. On the other hand, riders who mostly ride trails, cross-country, or prefer a simpler setup might find a more affordable or versatile shock (e.g., Fox Float, RockShox SID, or DT Swiss) to be a better match.

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### **Recommendation**

- You ride primarily in downhill, freeride, or aggressive enduro disciplines.

- You want the best-in-class performance, durability, and adjustability for extreme conditions.

- You are willing to invest in a high-end suspension component and understand its tuning requirements.

- Your bike setup (fork, frame) is compatible with the shock s specifications.

- You value Fox s reputation for reliability and after-sales support.

- You ride mostly trails, cross-country, or casual enduro where a shorter travel shock would suffice.

- You are on a tighter budget and can find a similarly performing shock (e.g., RockShox SID, DT Swiss) at a lower cost.

- You lack experience with suspension tuning and prefer a simpler, more forgiving setup.

- Your riding style does not frequently demand the full 400mm of travel.

For most aggressive riders, the Fox 36 Factory is a **strong recommendation** due to its unmatched performance and longevity. However, weigh the cost and complexity against your riding needs to ensure it aligns with your goals.

Details:

400x2.80 mtb coil for shocks.

part #: 80304157 prices

• $32.00-$44.85

specifications ribicycl:

• brand: Fox
• mpn: 80304157
• part type: Coil
• shock type: Coil Shock
• unit type: Lb
• color: Black
• compatible bike type: Mountain Bike
• material: Steel
• set includes: Coil Spring
• item length: 2.8
• item width: 450lb

payments ribicycl:

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

seller ribicycl:

• city: Brevard, North Carolina
• # reviews: 0
• rating: 0.0%

offer ribicycl:

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

returns ribicycl:

• policy: No Returns

general ribicycl:

• condition: Used
• Cycling > Bicycle Components Parts > Rear Shocks

shipping ribicycl:

• type: Calculated
• transit: 5-11 Days
• service: USPS Ground Advantage
• cost: $8.46
• class: Standard
• carrier: USPS

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