fits make: Skidoo, Ski-doo. year: 2019–2021.

( Brand: Ski-doo ), ( Manufacturer Part Number: 505074649 ), ( Part Type: Leg ), ( Country Of Origin: United States )
The **Ski-Doo 600 R/S Leg Racing Sled (Model 505074649, 2019-2021)** is a high-performance, track-ready snowmobile designed for competitive leg racing enthusiasts who demand precision, power, and cutting-edge engineering. Engineered by Ski-Doo, a brand synonymous with innovation in the snowmobile industry, this sled combines brute force with razor-sharp handling to dominate the leg racing circuit. At its heart lies a **600cc E-TEC 2-cylinder engine**, delivering an impressive 50 horsepower and 38 lb-ft of torque, ensuring explosive acceleration and relentless speed. The E-TEC engine is renowned for its reliability, fuel efficiency, and smooth power delivery, making it a favorite among racers who need a machine that can handle the rigors of high-speed competition without sacrificing durability.
The **600 R/S** is built on a lightweight yet robust **aluminum frame**, optimized for agility and responsiveness, allowing riders to navigate tight turns and aggressive lines with confidence. The sled features a **full suspension system**, including a **front coil-over shock absorber** and a **rear progressive-rate shock**, which absorbs impacts and maintains stability at high speeds, reducing fatigue and improving overall control. The **leg racing-specific design** is evident in its **low-profile, aggressive stance**, with a **short wheelbase** and **wide track**, enhancing cornering ability and reducing body roll. The **adjustable handlebars** and **ergonomic seating position** ensure a competitive edge by allowing riders to adopt an aerodynamic, forward-leaning posture that minimizes wind resistance and maximizes speed.
For racers who prioritize performance, the **600 R/S** comes equipped with **high-performance tires**, including a **front 12x12-inch tire** and a **rear 15x15-inch tire**, engineered for maximum grip and durability on both snow and ice. The **disc brake system** provides reliable stopping power, crucial for navigating tight turns and avoiding collisions in close-quarters racing. The sled s **electronic fuel injection (EFI)** system ensures consistent power delivery, while the **digital instrument cluster** offers real-time data on speed, RPM, and fuel levels, empowering riders to make split-second adjustments for optimal performance.
Safety and durability are not overlooked in this high-octane sled. The **600 R/S** features **reinforced chassis components**, including a **steel-reinforced frame** and **high-strength aluminum panels**, designed to withstand the stresses of intense racing. The **integrated exhaust system** not only enhances performance but also reduces noise, making it a more versatile option for track use. Additionally, the sled s **modular design** allows for easy customization, with aftermarket upgrades readily available for those looking to fine-tune their machine for specific track conditions or personal preferences.
Whether carving through deep powder or racing on icy tracks, the **Ski-Doo 600 R/S Leg Racing Sled (2019-2021)** is a powerhouse built for those who refuse to compromise on speed, precision, or performance. Its blend of **cutting-edge technology, aggressive handling, and raw power** makes it a standout choice for serious leg racers who are serious about dominating the competition. With its **sleek, aerodynamic silhouette** and **unmatched track capabilities**, this sled is not just a machine it s a weapon designed to conquer the snow.
### Pros and Cons of Buying a Ski-Doo 505074649 (2019-2021) 600RS Leg Racing Sled
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#### **Pros**
1. **Performance and Speed**
The 600RS is a high-performance sled designed for racing and aggressive riding. Its 600cc Rotax engine delivers strong power, making it one of the fastest production sleds in its class. The leg racing configuration enhances maneuverability and speed, ideal for competitive riders.
2. **Leg Racing Capability**
The leg racing setup (with the 505074649 kit) allows riders to achieve a more aggressive, low-to-the-ground stance, which improves aerodynamics and control at high speeds. This is a significant advantage for racers or riders who want a more dynamic experience.
3. **Reliability of Ski-Doo Engines**
Ski-Doo s Rotax engines are known for their durability and consistent performance. The 600RS engine is well-built, and with proper maintenance, it can last for many seasons, even under heavy use.
4. **Aftermarket Support**
The 600RS is a popular sled, so there is a wide range of aftermarket parts available, including upgrades for suspension, exhaust, and aerodynamics. This makes it easier to customize the sled to fit your riding style or preferences.
5. **Resale Value**
Ski-Doo sleds, especially popular models like the 600RS, tend to hold their value well compared to some competitors. If you decide to sell it later, you may still get a good return on investment.
6. **Ski-Doo Brand Reputation**
Ski-Doo is a well-respected brand in the snowmobile industry, known for innovation, quality, and a strong racing heritage. Owning a Ski-Doo carries prestige, especially in competitive circles.
7. **Suspension and Handling**
The 600RS features a robust suspension system that is tuned for aggressive riding. The handling is precise, making it suitable for both track racing and off-track use, though it may feel firmer than some recreational sleds.
8. **Aerodynamic Design**
The sled s design includes features like a deep tunnel and aerodynamic fairings, which help reduce drag and improve top-end speed. This is particularly beneficial for racers or riders pushing the limits.
9. **Track and Competition Readiness**
The 600RS is often used in leg racing and other competitive disciplines. If you re involved in racing, this sled is a strong choice due to its track-ready setup and performance.
10. **Fuel Efficiency (Compared to Larger Engines)**
While not as fuel-efficient as smaller sleds, the 600RS still offers a good balance of power and fuel consumption for its class, especially when compared to larger 800cc or 1000cc engines.
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#### **Cons**
1. **High Cost**
The 600RS is an expensive sled, especially when purchased new or in good used condition. The price point may be prohibitive for casual riders or those on a tight budget. Used models can still be costly, depending on their condition and mileage.
2. **Maintenance Expenses**
High-performance sleds like the 600RS require regular maintenance, including tune-ups, suspension checks, and engine servicing. Parts and labor can add up quickly, particularly if you re upgrading components or dealing with wear and tear from aggressive riding.
3. **Fuel Consumption**
The 600RS burns fuel at a higher rate than smaller sleds, which can be costly over time. If you ride frequently or for long distances, fuel expenses will add up.
4. **Weight**
The sled is heavier than some recreational models, which can make it less maneuverable in tight or technical terrain. While this isn t an issue for racers, it may be a drawback for riders who prefer lighter, more agile sleds for general use.
5. **Noise and Vibration**
The 600RS is a loud sled, especially at high speeds. The engine and exhaust produce significant noise, which may not be ideal for riders who prioritize comfort or those riding in noise-sensitive areas. Vibration levels can also be noticeable, particularly on rough terrain.
6. **Limited Comfort for Long Rides**
The aggressive stance and lack of extensive seating comfort make the 600RS less suitable for long, leisurely rides. Racers and aggressive riders may not mind this, but casual riders might find it uncomfortable.
7. **Specialized Use Case**
The 600RS is optimized for racing and high-speed riding. If you re not involved in leg racing or competitive riding, some of its features (like the leg racing setup) may feel unnecessary or even limiting for general use.
8. **Resale Depreciation**
While Ski-Doo sleds hold value reasonably well, like all vehicles, they depreciate over time. If you plan to sell it after a few years, the depreciation may offset some of the initial investment.
9. **Learning Curve**
The 600RS s power and handling require skill to manage, especially at high speeds. Newer riders may find it challenging to control, increasing the risk of accidents if not properly trained.
10. **Environmental and Legal Considerations**
The noise and emissions of a high-performance sled like the 600RS may be restricted in some areas. Check local regulations to ensure you re compliant with noise levels, emissions standards, or riding restrictions.
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### **Conclusion**
The Ski-Doo 600RS leg racing sled is a powerful, high-performance machine designed for competitive riders and those seeking an aggressive, fast-paced snowmobile experience. It excels in leg racing and track use, offering strong power, precise handling, and a reputation for reliability. However, its high cost, maintenance requirements, and specialized nature make it less ideal for casual or budget-conscious riders.
If you re a serious racer, an experienced rider, or someone who prioritizes speed and performance above comfort or versatility, the 600RS is an excellent choice. For recreational riders, those on a budget, or those who prefer a more comfortable or lighter sled, there may be better alternatives.
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### **Recommendation**
**Buy the Ski-Doo 600RS if:**- You are an experienced rider involved in leg racing or competitive snowmobiling.
- You prioritize speed, performance, and handling over comfort or fuel efficiency.
- You have the budget to cover the initial purchase price and ongoing maintenance costs.
- You plan to use the sled primarily for racing or aggressive riding rather than casual outings.
**Consider alternatives if:**- You re a casual rider looking for a more affordable or comfortable sled.
- You don t have experience with high-performance sleds and are concerned about the learning curve.
- You ride in areas with strict noise or emissions regulations that may limit your use.
- You prefer a sled that is more versatile for different types of riding (e.g., touring, backcountry, or family-friendly use).
For those who meet the criteria, the 600RS is a fantastic investment in a high-performance sled that will deliver thrilling rides and competitive edge. For others, exploring other Ski-Doo models (like the 500 or 850) or brands may offer a better fit for your needs.
Fits the following machines:: 2019 Ski Doo MXZ 600RS RACING. Ski-Doo 2019 2021 New Take Off 600RS Ski leg 505074649 Racing Sled. Al's Snowmobile and ATV parts. New take off, has some minor scuffs and dings from storage.
2020 Ski Doo MXZ 600RS RACING SLED Europe.