LEN PERFORMANCE LS4-80001R Track Shock Blizzard Rear Ski Doo M-014 129

( 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 600R MXZ 2019

The **Len Performance LS4-80001R M-014 Track Shock** is a high-performance, precision-engineered suspension component designed specifically for the **Ski-Doo MXZ 600R Blizzard E-TEC (2019)**, ensuring optimal handling, stability, and ride comfort off-road. Built to withstand the rigorous demands of aggressive track use, this shock absorber features a **dual-tube design** with a **nitrogen-charged gas spring**, delivering superior damping control and preventing oil foaming under extreme conditions. The **adjustable rebound and compression damping** allows riders to fine-tune the suspension to their preferred riding style, whether tackling rough terrain, deep snow, or technical obstacles. Constructed from **high-grade steel and durable polymer components**, this shock is engineered for longevity, resisting corrosion and maintaining consistent performance even in harsh, wet, or frozen environments. The **M-014 track-specific tuning** enhances traction and responsiveness, reducing body roll and improving overall stability during high-speed turns and aggressive maneuvers. Whether navigating icy tracks, deep powder, or rocky trails, this shock ensures a smoother, more controlled ride while extending the lifespan of your Ski-Doo s suspension system. Ideal for serious riders who demand peak performance, the Len Performance LS4-80001R is a direct upgrade from OEM components, offering enhanced durability, better energy return, and a more engaging driving experience.

### Pros and Cons of buying a Len Performance LS4-80001R M-014 Track Shock for a Ski-Doo MXZ 600R Blizzard E-TEC (2019) Rear

1. **Improved Ride Comfort and Stability**

The LS4-80001R is designed to enhance suspension performance, reducing harshness on rough terrain and improving overall ride comfort. This is particularly useful for track days or aggressive riding where the suspension is pushed harder than stock.

2. **Better Handling and Control**

The shock is engineered to provide a firmer, more responsive feel, which can improve handling on tight or technical tracks. The adjustable damping helps fine-tune the suspension to match the rider s weight and riding style, leading to better control.

3. **Durability and Performance**

Len Performance shocks are known for their high-quality construction, often featuring reinforced components and robust seals that can withstand the demands of off-road and track use. The M-014 model is specifically tuned for performance, offering better energy return and reduced sag compared to stock shocks.

4. **Compatibility with Aftermarket Upgrades**

If you plan to add other performance parts (e.g., exhaust, clutch, or track tires), this shock can complement those upgrades by maintaining balanced handling and suspension performance.

5. **Adjustability**

Many Len Performance shocks offer adjustable preload and damping settings, allowing riders to fine-tune the suspension for different conditions whether it s track days, trail riding, or mixed terrain.

6. **Reduced Fatigue for the Rider**

A well-tuned suspension reduces the jarring impacts that can cause rider fatigue, especially during long sessions. This can lead to better focus and performance over time.

7. **Potential for Increased Speed and Traction**

By optimizing the suspension s response, the LS4-80001R can help maintain better wheel contact with the ground, improving traction and potentially allowing for higher speeds on the track.

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1. **Cost**

Performance shocks like the Len LS4-80001R are significantly more expensive than OEM (original equipment manufacturer) shocks. The price point may be a barrier for riders who are on a tight budget or only do occasional track days.

2. **Installation Complexity**

While not overly difficult, replacing a rear shock on a Ski-Doo requires some mechanical skill and access to the right tools. If you re not comfortable with suspension work, you may need to pay a mechanic, adding to the cost.

3. **Potential for Overkill**

If you primarily ride on trails or light off-road conditions rather than aggressive tracks, the firmer feel of the Len shock might feel too stiff or uncomfortable. The stock suspension may already be adequate for casual use.

4. **Weight**

Performance shocks are often heavier than stock units due to their reinforced construction. While the difference may be minimal, it could slightly affect the bike s overall weight distribution, though this is usually negligible for most riders.

5. **Warranty Considerations**

Ski-Doo s warranty may not cover aftermarket parts like the Len shock. If something goes wrong with the suspension, you ll be responsible for repairs, which could be costly if the shock fails prematurely.

6. **Learning Curve for Adjustments**

If the shock has adjustable settings, it may take some experimentation to dial in the perfect setup for your riding style and conditions. Poorly adjusted suspension can actually degrade performance rather than improve it.

7. **Compatibility with Stock Components**

While the Len shock is designed to fit the 2019 MXZ 600R, ensuring a perfect fit can sometimes be tricky, especially if other modifications (e.g., exhaust or suspension geometry changes) have been made. Always verify compatibility with the manufacturer or a trusted mechanic.

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The Len Performance LS4-80001R M-014 track shock is a high-quality upgrade for a 2019 Ski-Doo MXZ 600R Blizzard E-TEC, particularly if you prioritize track performance, stability, and ride comfort on aggressive terrain. Its adjustable nature and durability make it a strong choice for riders who push their bikes hard. However, the higher cost, installation requirements, and potential overkill for casual riders are factors to consider.

If you frequently ride on tracks, take your bike to the limit, or want to enhance handling and comfort, this shock is a worthwhile investment. For riders who mostly use their bike for trail or light off-road use, the stock suspension or a more budget-friendly aftermarket option might suffice.

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- You ride your Ski-Doo on tracks or aggressive terrain regularly.

- You want to improve handling, stability, and comfort.

- You re willing to invest in a high-performance suspension upgrade.

- You re comfortable with installation or have access to a mechanic.

- You primarily ride on trails or light off-road conditions.

- You re on a tight budget and the stock suspension meets your needs.

- You re not confident in installing or adjusting the shock yourself.

For a balanced approach, consider pairing this shock with other complementary upgrades (e.g., track tires, clutch, or exhaust) to maximize performance. Always verify compatibility and consult with a trusted mechanic if unsure.

Details:

The hardened chorally shaft increases overall strength and seal longevity. All sprained shocks feature a threaded body for ultimate reload adjust ability. Len Shocks all come standard with a 5 stage compression adjustment. Serviceable design increases the lifespan of our shocks and ensures consistent Performance for many years to come.

Anodized aluminum finned reservoir offers added surface area for superior cooling, while also increasing strength. Free Ground Shipping. To ensure you're receiving exactly what you want, some orders are sourced from various shipping facilities. User friendly intuitive design features 5 compression adjustments for seamless adaptation.

Len Performance Track Shock For Ski-Doo MXZ 600R Blizzard E-TEC 129 / Rear 2019: 2019. 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. Note: Image is for reference only, actual product may vary slightly.

part #: ls480001r prices

• $326.19-$392.95

specifications snowmobileshocksoi:

• for models: 600r, Mxz
• for makes: Ski-doo
• for years: 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

payments snowmobileshocksoi:

• other
• credit card: Discover
• wallet: Paypal

returns snowmobileshocksoi:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer snowmobileshocksoi:

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

seller snowmobileshocksoi:

• city: Wilmington,
• rating: 99.7%
• # reviews: 238667

shipping snowmobileshocksoi:

• cost: $0.00
• type: Fixed
• carrier: FedEx
• transit: 2-7 Days
• class: Standard
• service: FedEx Ground / FedEx Home Delivery

general snowmobileshocksoi:

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

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