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  2. sku: 17247128646050813
  3. ROCKSHOX 004118306013

ROCKSHOX Sid Rear Bike Shock Need Seals 004118306013 0710845847417

Rockshox 004118306013 Sid Rear Bike Shock May Need New Seals

( Brand: Rockshox ), ( Part Type: Bike ), ( Material: Aluminum ), ( Set Includes: Rear Shock ), ( Manufacturer Warranty: 2 Years ), ( Item Weight: 200-299 G ), ( UPC: 004118306013 ), ( Shock Type: Air Shock ), ( Color: Black ), ( Compatible Bike Type: Mountain Bike ), ( Item Length: 185 Mm ), ( Item Width: 55 Mm )

Review ROCKSHOX Sid Rear Bike Shock May Need New Seals

The **RockShox 004118306013 SID Rear Bike Shock with Seals** is a high-performance, high-quality suspension component designed to elevate the handling, comfort, and control of modern mountain bikes, enduro rigs, and aggressive trail bikes. Part of RockShox s renowned **SID (Selectable Internal Damping)** line, this rear shock delivers a seamless blend of precision engineering and rider-tailored adjustability, making it an ideal choice for both competitive cyclists and serious off-road enthusiasts. Built with RockShox s signature **Fork Feel Technology**, this shock ensures a responsive, natural feel that translates seamlessly from the fork to the rear wheel, enhancing traction, stability, and efficiency across rough terrain. The **SID system** allows riders to fine-tune the shock s damping characteristics on the fly with a simple twist of the **SID knob**, offering three distinct damping modes **Soft, Medium, and Hard** to adapt to varying conditions, rider weight, and personal preference. This level of adjustability ensures optimal performance whether you're carving through technical singletrack, bombing down steep descents, or tackling rough, root-laden trails.

Under the hood, the **004118306013** features RockShox s **High-Speed Damping (HSD)** technology, which enhances stability at high speeds while maintaining smoothness during slow, technical maneuvers. The **sealed cartridge design** protects the internal components from dirt, moisture, and debris, prolonging the shock s lifespan and ensuring consistent performance over thousands of miles. The **sleeve and piston assembly** is crafted from durable, corrosion-resistant materials, while the **high-performance seals** specifically included in this kit prevent fluid leakage and maintain optimal internal pressure, reducing the risk of air bubbles and ensuring buttery-smooth operation. These seals are engineered to withstand extreme temperatures and high-pressure conditions, making them a critical upgrade for riders who demand reliability in harsh environments.

For those seeking a balance between performance and maintenance, the **SID rear shock** incorporates RockShox s **Easy Maintenance (EM) system**, allowing for quick and straightforward servicing without the need for specialized tools. The **preload adjustment** is accessible via a simple lever, enabling riders to fine-tune sag and stiffness to match their body weight and riding style. Additionally, the shock s **low-profile design** and **compatibility with most aftermarket rear linkages** make it a versatile fit for a wide range of bikes, from full-suspension hardtails to aggressive enduro builds. Whether paired with a **RockShox Pike, Delite, or Reba** fork or integrated into a custom setup, this shock delivers the responsiveness and durability needed to push the limits of off-road riding.

Beyond its technical specifications, the **RockShox 004118306013 SID Rear Shock with Seals** embodies the brand s commitment to innovation and rider-centric design. Its **adjustable rebound damping** allows for precise control over wheel lift and bottoming-out, while the **smooth, progressive action** ensures a confident, connected ride. Whether you're a professional racer dialing in every last bit of performance or a weekend warrior seeking a more comfortable and capable ride, this shock provides the tools to optimize your bike s performance. With its **durable construction, easy maintenance, and adaptable tuning options**, it stands as a cornerstone component for any serious off-road setup, ensuring that every pedal stroke and descent is met with precision, control, and exhilaration.

Buying a used or refurbished **RockShox 004118306013 (SID rear bike shock with seals)** can be a cost-effective solution for riders looking to upgrade or repair their suspension, but it comes with several considerations.

### Pros:

1. **Cost Savings** New RockShox shocks are expensive, often costing several hundred dollars. A used or refurbished unit can be significantly cheaper, allowing riders to access high-quality suspension at a fraction of the price.

2. **Performance and Reliability** The RockShox SID (Single Interface Damper) is a well-regarded shock design known for its durability, adjustability, and performance in both trail and enduro riding. A properly maintained unit retains these benefits.

3. **Compatibility** If the shock is from a similar bike model or has the correct mounting hardware, it can be easily swapped in, avoiding the need for new parts.

4. **Environmental Benefits** Purchasing used reduces waste and extends the lifespan of quality components.

5. **Access to Specialty Models** Some RockShox models (especially older or discontinued ones) may be harder to find new, making used units the only viable option.

### Cons:

1. **Unknown Service History** Without documentation or a trusted seller, it s difficult to verify if the shock has been properly serviced, rebuilt, or abused. Issues like worn seals, damaged internals, or improper adjustments can lead to premature failure.

2. **Potential for Hidden Damage** Even if the seals are intact, internal components like springs, rebound valves, or the piston rod may be worn or damaged, leading to poor performance or catastrophic failure.

3. **Inconsistent Quality** Used shocks may vary widely in condition. A well-maintained unit from a reputable seller will perform like new, while a neglected one could be unreliable.

4. **Limited Warranty** Most used shocks come with no warranty, meaning any issues after purchase are the buyer s responsibility.

5. **Compatibility Risks** If the shock is from a different bike model, the mounting points, travel, or linkage may not align perfectly, requiring modifications or adjustments.

6. **Risk of Counterfeit or Mismatched Parts** Some sellers may offer "used" shocks that are actually refurbished with generic parts or mismatched components, compromising performance.

### Additional Considerations:

- **Seals Matter** The fact that the seals are included is a positive sign, as seals are critical for preventing dirt and moisture from damaging the internals. However, even new seals may not be sufficient if the rest of the shock is worn.

- **Testing and Inspection** If possible, test the shock for smooth operation, proper resistance, and lack of leaks. A reputable seller should provide this or offer a return policy.

- **Rebuild vs. Buy New** In some cases, rebuilding an old shock (if the core is intact) can be cheaper than buying used, but this requires mechanical skill and access to parts.

### Conclusion:

Buying a used **RockShox 004118306013 SID rear shock with seals** can be a smart financial decision if you prioritize cost savings and can verify the unit s condition. However, the risks of hidden damage or inconsistent quality make it a gamble unless you have confidence in the seller s reputation or can inspect the shock thoroughly. If performance and reliability are critical, a refurbished shock from a trusted source (such as a bike shop or reputable online seller with return policies) is a safer bet than an untested used unit.

### Recommendation:

1. **Prioritize Trusted Sources** Purchase from a bike shop, suspension specialist, or well-reviewed online seller (e.g., eBay with seller feedback, local bike co-ops, or RockShox-certified rebuilders). Avoid private sellers with no history unless you can inspect the shock in person.

2. **Inspect Thoroughly** Check for:

- No leaks or excessive play in the seals.

- Smooth, consistent resistance when compressed and extended.

- No visible rust, dents, or damage to the housing or linkage.

- Proper adjustment settings (if adjustable).

3. **Consider a Refurbished Unit** Some shops offer professionally rebuilt shocks with new seals and tested internals, which may carry a limited warranty and reduce risk.

4. **Budget for Potential Issues** Even a "good" used shock may need servicing (e.g., new seals, valve adjustments) after purchase. Factor this into your budget.

5. **Alternative: Buy New If Possible** If your budget allows, a new RockShox shock (or a comparable alternative like Fox or DT Swiss) may offer peace of mind, especially for high-use or safety-critical applications.

6. **Rebuild Your Own (Advanced)** If you re mechanically inclined, disassembling and rebuilding a used core with new seals and parts can be a cost-effective DIY project, but this requires research and tools.

**Final Verdict:** If you re confident in the source and condition of the shock, a used RockShox SID with seals can be a great value. Otherwise, opt for a refurbished unit or consider a new shock if budget permits. Always prioritize safety and performance over cost savings when it comes to suspension components.

Details:

This shock is in pretty good condition other than a few scratches and scuffs also it rides squishy so may need new seals but still ride able.

part #: 004118306013 price

  • $70.00

specifications ribicycl:

  • brand: Rockshox
  • part type: Bike
  • material: Aluminum
  • set includes: Rear Shock
  • manufacturer warranty: 2 Years
  • item weight: 200-299 G
  • upc: 004118306013
  • shock type: Air Shock
  • color: Black
  • compatible bike type: Mountain Bike
  • item length: 185 Mm
  • item width: 55 Mm

shipping ribicycl:

  • class: Standard
  • transit: 5-11 Days
  • service: USPS Ground Advantage
  • type: Calculated
  • carrier: USPS
  • cost: $8.65

seller ribicycl:

  • # reviews: 11
  • city: Frazier Park, California
  • rating: 100.0%

payments ribicycl:

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

general ribicycl:

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

offer ribicycl:

  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • availability: In Stock
  • started: March 24, 2026
  • best offers: True

returns ribicycl:

  • policy: No Returns
part type: bike, set includes: rear shock, manufacturer warranty: 2 years, item weight: 200-299 g, shock type: air shock, compatible bike type: mountain bike, item length: 185 mm, item width: 55 mm,
category: sporting goods > cycling > bicycle components parts > rear shocks, color: black, material: aluminum, sku: 17247128646050813,
Rockshox 004118306013 Is Similar To:
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1 offer $70.00 USD
  • Used. Offer #1 priced at $70.00 + $9.35 shipping estimate = $79.35* total. This shock is in pretty good condition other than a few scratches and scuffs and also it rides pretty squishy so it may need new seals but is still rideable.+$9.35 shipping

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