2021 Sea-Doo RXT®-X® 300 Millenium Yellow
$12,995
Boat in Coldwater, MI 49036 US
RXT®-X® 300 Millenium Yellow
1 Engine (ROTAX)
11.3 feet
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Other
REDUCED PRICE
2021 Sea-Doo RXT®-X® 300 Millenium Yellow
Its revolutionary lighter platform, combined with the Ergolock System, maximizes control in any condition, setting a sky-high bar for rough water performance. With the 300-hp engine, 60 mph (96 km/h) is just a few seconds away.
Features may include:
Rear cargo LinQ system
- Fast. Easy. Secure.
Extra rear storage is now possible with the secure quick-attach LinQ system. It allows to easily snap a fuel caddy and a bag, or a cooler, to the back of your watercraft using two convenient, integrated attachment points.
Large swim platform
- Configurable. Comfortable. Groundbreaking.
The first watercraft to hang out on the water with the largest swim platform in the industry. Flat, stable and comfortable, it is ideal for boarding, lounging, and prepping for tow sports. Create even more space by removing the rear seat.
At Rest. At Speed. Always Steady.
- Stable and predictable hull
Whether you're at high speeds pounding rough offshore waters, at rest hanging out in a cove or you're simply boarding from the side, the wider hull offers industry leading stability thanks to a lower center of gravity and improved hull design.
The most powerful engine on a Sea-Doo, ever
- Rotax 1630 ACE engine
Supercharged with an external intercooler, the advanced combustion efficiency (ACE) technology delivers high efficiency and amazing acceleration. This is the most powerful engine on a Sea-Doo producing a thrilling 300-hp.
Ingenious storage
- Direct access front storage
All your gear is now within arm's reach. The industry's first direct-access front storage opens by simply raising the handlebar assembly. No standing required. It's the smartest water-resistant storage we've ever built into a watercraft, offering room for your next adventure.
Lock in your seat
- Ergolock system with modular seat
The narrow racing seat places your knees closer together to hold on tighter while improving the transition into standup riding. Plus, the removable rear seat gives you even more space for hanging out on the rear platform, sunbathing or a face-to-face picnic.
Closed-loop cooling system
- A Sea-Doo Exclusive
This technology prevents corrosive saltwater and damaging debris from entering the engine, for increased reliability and peace of mind.
Intelligent brake and reverse
- The Industry's first and most intuitive on-water brake
Recognized by the U.S. Coast Guard for improving boat safety and now in its third generation, the Sea-Doo exclusive iBR system allows you to stop sooner. With both hands on the handlebars, riders can engage forward, neutral, and reverse for stable, worry-free maneuvering at low speeds.
Wide digital display
- Fully Digital Gauge
The 7.6 inches wide digital display offers riders an improved user experience when cycling through modes and locating vehicle information. It also features an automatically dimming backlight that ensures high visibility in any light. The larger display area makes for improved visibility when riding.
X Package
- Take performance further
Add on the performance package. With X-Sponsons for cornering stability and our innovative ErgoLock System featuring a narrow racing seat, specially angled footwell wedges and adjustable X-steering, you and the machine become one.
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.
Price History
| Date | Event | Price |
|---|---|---|
| 9/13/25 | Initial price | $12,995 |
2021 Sea-Doo RXT®-X® 300 Millenium Yellow Video Tours
Overview from around the web 2021 Sea-Doo RXT®-X® 300 Millenium Yellow
Customers rave about the 2021 Sea-Doo RXT®-X® 300 Millenium Yellow, highlighting its exceptional performance and sleek design
Many users appreciate the powerful 300 HP engine, which delivers thrilling acceleration and speed on the water. The innovative hull design provides stability and agility, making it ideal for both calm and choppy conditions. The vibrant Millenium Yellow color stands out on the water, capturing attention and admiration. Riders also praise the advanced features, such as the ergonomic seating and intuitive touchscreen display, which enhance the overall riding experience. The integrated Bluetooth audio system is a favorite, allowing users to enjoy their favorite tunes while cruising. Moreover, customers commend the Sea-Doo RXT®-X® 300's comfortable ride, making it perfect for long outings. With its combination of technology, performance, and style, it’s no surprise that this model is a top choice among watercraft enthusiasts. Overall, the feedback reflects a strong satisfaction with the thrilling experience and high-quality craftsmanship of the 2021 Sea-Doo RXT®-X® 300 Millenium Yellow.
The Biggest Pros and Cons
2021 Sea-Doo RXT®-X® 300 Millenium Yellow: Pros and Cons
Pros
Powerful Performance: Equipped with a 300 horsepower engine, the RXT®-X® 300 delivers exhilarating speed and acceleration, making it ideal for thrill-seekers.
Advanced Handling: The Intelligent Brake and Reverse (iBR) system enhances maneuverability, allowing for precise handling and smooth deceleration.
Stable Ride: Features like the T3 hull provide exceptional stability in rough waters, ensuring a comfortable ride even in challenging conditions.
Luxurious Comfort: The seat is designed for comfort, featuring a unique shape that allows for extended riding without fatigue, perfect for long days out on the water.
Cutting-Edge Technology: Equipped with a customizable digital display and several intuitive controls, riders can monitor performance metrics and adjust settings effortlessly.
Versatile Storage: The RXT®-X® 300 offers ample storage options, including a generous front compartment and PGP (Personal Gear Potential) for safely stowing personal items.
Striking Design: The eye-catching Millenium Yellow color scheme adds a bold, distinctive look to the watercraft, making a statement on the water.
Cons
Higher Price Point: As a high-performance model, the RXT®-X® 300 may be on the pricier side compared to entry-level watercraft, making it less accessible for some buyers.
Weight: With its robust construction, the RXT®-X® 300 can be heavier than other models, which might affect portability and handling for some users.
Fuel Consumption: The powerful engine can lead to higher fuel consumption, especially during aggressive riding, which may require more frequent refueling.
Learning Curve: Beginners may find the advanced features and high performance a bit overwhelming at first, necessitating a learning period to fully enjoy the capabilities of the watercraft.
Limited to Adventure Seekers: While it excels in performance and handling, it may not be as appealing for casual riders looking for a more relaxed experience on the water.
Made For
The 2021 Sea-Doo RXT®-X® 300 Millenium Yellow is designed for thrill-seekers and performance enthusiasts who crave adrenaline on the water. This high-performance personal watercraft is perfect for experienced riders looking to tackle challenging waters with confidence and style. With its powerful 300-horsepower engine, advanced handling, and cutting-edge technology, this model is ideal for those who want to push the limits of speed and agility. Whether you’re carving through waves, enjoying long rides, or competing in high-stakes racing events, the RXT®-X® 300 Millenium Yellow delivers an unparalleled experience. It's also an excellent choice for family outings, providing ample space and comfort for passengers, while its striking design ensures you’ll turn heads wherever you go. If you’re looking for a perfect blend of performance, comfort, and style, this Sea-Doo is just for you.
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No image available 2021 Sea-Doo RXT®-X® 300 Millenium Yellow | |
|---|---|
| $12,995 | $12,995 |
| Coldwater | Waterford |
| 11' | 11' |
| ROTAX | ROTAX |
| 300 hp | 300 hp |
| 235 | 243 |
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Meet the Broker

Address
Boat Location
Contact Coldwater Lake Marina about 2021 Sea-Doo RXT®-X® 300 Millenium Yellow
626 Lake Dr., Coldwater, MI, 49036





