LEN PERFORMANCE LS4-80001R Track Shock Blizzard Rear Ski Doo M-022 129

( Brand: Len Performance ), ( Manufacturer Part Number: LS4-80001R ), ( Part Type: Shock ), ( Oem1: 503194625 ), ( Kit Used In: Ls4-80001k ), ( Shock Location: Rear Track ), ( Eyelet Top Width: 19.7mm / 0.8inch ), ( Shock Length Open: 426mm / 16.8inch ), ( Shock Weight: Lbs ), ( Shock Length Closed: 277mm / 10.9inch ), ( Shock Stroke Length: 149mm / 5.9inch ), ( Rebound Click Adjustment: - ), ( Eyelet Top Inner Diameter: 8.1mm / 0.3inch ), ( Eyelet Bottom Inner Diameter: 8mm / 0.3inch ), ( Compression Adjustment High Speed/low Speed: -/5 )

Review LEN PERFORMANCE Track Shock Ski doo Blizzard E tec 129 Rear fits MXZ 850 2018–2019

The **Len Performance LS4-80001R M-022 Track Shock** is a precision-engineered, high-performance suspension component meticulously designed to elevate the off-road capabilities of the **Ski-Doo MXZ 850 Blizzard E-TEC (2018-2019)**. Built to withstand the rigorous demands of aggressive track riding, this shock absorber combines cutting-edge technology with robust construction to deliver unmatched stability, control, and comfort across rough terrain. The **M-022** designation indicates a specialized track-focused tuning, optimizing rebound and compression damping for maximum traction and responsiveness in tight, technical trails where traditional shocks may falter. Crafted from high-grade materials, including a durable **aluminum body** and a **sealed, nitrogen-charged gas system**, this shock ensures consistent performance under extreme conditions, resisting heat buildup and maintaining smooth operation even during prolonged, high-load use. The **LS4** series incorporates **adjustable rebound damping**, allowing riders to fine-tune the shock s responsiveness to their weight, riding style, and terrain preferences whether carving through deep snow, navigating rocky descents, or tackling steep climbs. With its **O-ring-sealed internals** and **corrosion-resistant coatings**, this shock is engineered for longevity, reducing maintenance needs and ensuring reliability in harsh environments where moisture, dust, and debris are constant challenges. Whether you re pushing the limits on competitive tracks or simply seeking superior handling for recreational riding, the Len Performance LS4-80001R M-022 delivers a seamless blend of performance and durability, transforming your Ski-Doo into a more agile, controlled, and confident machine. Perfect for riders who demand the best in suspension technology, this shock is a game-changer for those who refuse to compromise on power, precision, or comfort.

### **Pros and Cons of buying a Len Performance LS4-80001R M-022 Track Shock for Ski-Doo MXZ 850 Blizzard E-TEC (2018-2019) Rear**

1. **Improved Ride Comfort** The LS4 shock is designed for enhanced suspension performance, which can reduce harshness on rough terrain, making long rides more comfortable.

2. **Better Handling and Stability** The shock s adjustable settings (if applicable) or optimized tuning can improve traction, reduce body roll, and enhance overall control, especially in aggressive or technical riding conditions.

3. **Durability and Performance** Len Performance shocks are known for their robust construction, often featuring high-quality materials like reinforced springs, sealed internals, and corrosion-resistant coatings, which can extend the lifespan of your suspension compared to OEM parts.

4. **Off-Road Capability** If you frequently ride in deep snow, rough trails, or uneven terrain, this shock may provide better articulation and absorption of impacts, improving overall performance in demanding conditions.

5. **Potential for Customization** Some Len shocks offer adjustable rebound and compression damping, allowing you to fine-tune the suspension to your riding style and preferences.

6. **Compatibility** This specific part is designed for your Ski-Doo model, ensuring a proper fit without modification (assuming it matches the 2018-2019 rear shock specifications).

7. **Warranty and Support** Len Performance products often come with warranties, and the brand has a reputation for customer service, which can be reassuring for long-term use.

1. **Cost** Aftermarket shocks like this one are typically more expensive than OEM replacements. The price may be a significant investment, especially if you re replacing both front and rear shocks.

2. **Installation Complexity** While not overly difficult, replacing a rear shock on a Ski-Doo may require some mechanical skill, tools, and time. If you re not comfortable with suspension work, labor costs at a dealer could add up.

3. **Potential for Overkill** If you primarily ride on groomed trails or in relatively smooth conditions, the benefits of this shock may not be as noticeable, making the upgrade less justified.

4. **Learning Curve** If the shock is adjustable, you may need to experiment with settings to find the optimal balance between comfort and performance, which could take time.

5. **Resale Impact** Aftermarket suspension parts can sometimes deter buyers looking for a stock or lightly modified vehicle, though this is less of an issue for performance-oriented riders.

6. **Compatibility Doubts** Always verify that this exact part number (LS4-80001R M-022) is a direct drop-in replacement for your 2018-2019 model. Some aftermarket shocks require minor modifications (e.g., mounting hardware), so double-checking is critical.

7. **Maintenance Requirements** High-performance shocks may require more frequent inspections for leaks, wear, or proper lubrication to maintain performance.

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### **Conclusion**

The Len Performance LS4-80001R M-022 track shock is a solid aftermarket option for upgrading your Ski-Doo MXZ 850 Blizzard E-TEC s rear suspension, particularly if you prioritize comfort, off-road capability, and long-term durability. It offers noticeable improvements over stock suspension in rough conditions and can enhance handling, making it a worthwhile investment for riders who push their machines hard or frequently encounter challenging terrain.

However, the upgrade is not without drawbacks. The cost, installation effort, and potential overkill for mild riding conditions are factors to consider. If you re unsure about the fit or performance benefits, testing the shock in a controlled environment (e.g., renting or borrowing one) could help you decide before committing.

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### **Recommendation**

- You frequently ride in deep snow, rough trails, or aggressive conditions where suspension performance is critical.

- You value comfort and stability over stock suspension, especially for long rides.

- You re comfortable with installation or have access to a mechanic who can handle it.

- You re willing to invest in a high-quality aftermarket part that may last longer than OEM components.

- You mostly ride on groomed trails or in smooth conditions where the upgrade may not be noticeable.

- You re on a tight budget and can achieve similar results with a lower-cost suspension kit or maintenance.

- You re unsure about the exact compatibility or installation process, as mismatches or improper fitting can lead to handling issues.

- If you re unsure about the rear shock alone, pairing it with a front suspension upgrade (e.g., a Len Performance front shock) could provide more balanced improvements.

- Check for user reviews or forums (e.g., Ski-Doo or Len Performance communities) for real-world feedback on this specific part number.

- If cost is a concern, explore other reputable brands like **Fox, RockShox, or Ohlins**, which also offer high-quality aftermarket shocks with varying price points.

Ultimately, this shock is a strong choice for performance-oriented riders, but weigh the pros and cons against your riding habits and budget before purchasing.

Details:

All sprained shocks feature a threaded body for ultimate reload adjust ability. Len Snowmobile Ski Shocks feature a user friendly intuitive design and come standard with 5 rebound adjustment for increased adaptability to any riders experience level in condition!, The springs are powder coated reduce corrosion, increase durability ensure continued strength.: Len Performance Track Shock For Ski-Doo MXZ 850 Blizzard E-TEC 129 / Rear 2018 -2019: 2018 -2019. To ensure you're receiving exactly what you want, some orders are sourced from various shipping facilities.

Anodized aluminum finned reservoir offers added surface area for superior cooling, while also increasing strength. Free Ground Shipping. Note: Image is for reference only, actual product may vary slightly. Serviceable design increases the lifespan of our shocks and ensures consistent Performance for many years to come.

Len Shocks all come standard with a 5 stage compression adjustment. User friendly intuitive design features 5 compression adjustments for seamless adaptation. The hardened chorally shaft increases overall strength and seal longevity.

part #: ls480001r prices

• $326.19-$392.95

specifications snowmobileshocksoi:

• for models: Mxz, 850
• for makes: Ski-doo
• for years: 2018-2019
• brand: Len Performance
• mpn: Ls4-80001r
• part type: Shock
• oem1: 503194625
• kit used in: Ls4-80001k
• shock location: Rear Track
• eyelet top width: 19.7mm / 0.8inch
• shock length open: 426mm / 16.8inch
• shock weight: Lbs
• shock length closed: 277mm / 10.9inch
• shock stroke length: 149mm / 5.9inch
• rebound click adjustment: -
• eyelet top inner diameter: 8.1mm / 0.3inch
• eyelet bottom inner diameter: 8mm / 0.3inch
• compression adjustment high speed/low speed: -/5

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general snowmobileshocksoi:

• condition: New
• Parts Accessories > Snowmobile Parts > Shocks Suspension

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• city: Wilmington,
• rating: 99.7%
• # reviews: 238656

shipping snowmobileshocksoi:

• transit: 5-8 Days
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• type: Fixed
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offer snowmobileshocksoi:

• options: Ship-to-home
• sold: 0
• quantity: 5
• availability: In Stock
• started: February 12, 2026

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