2026 Sea-Doo GTR-X 300 for Sale in Kingston | Cartronics

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Looking for a 2026 Sea-Doo GTR-X 300 for sale in Kingston, Ontario? The Sea-Doo GTR-X 300 is built for riders who want serious horsepower, aggressive acceleration, and a more race-inspired riding experience while still enjoying the versatility of a 3-passenger personal watercraft.

At Cartronics Powersports, we help riders from Kingston, Amherstview, Odessa, Bath, Napanee, Gananoque, Sydenham, Verona, Sharbot Lake, Westport, Brockville, Belleville, Trenton, Quinte West, Picton, Prince Edward County, Perth, and Smiths Falls find the right Sea-Doo for their riding style and summer plans.

If you want a personal watercraft that delivers thrilling performance with standout styling and advanced features, the Sea-Doo GTR-X 300 deserves a close look.

View Current Sea-Doo GTR-X Inventory | Call Us Now

Race-Inspired Performance with Real-World Versatility

The Sea-Doo GTR-X 300 is designed for riders who want more than a typical recreational watercraft. It sits in Sea-Doo’s performance lineup and blends high-horsepower excitement with everyday usability.

It offers the kind of acceleration performance-minded riders want, while still providing room for passengers, practical storage, and the flexibility to enjoy more than just short high-speed blasts.

The GTR-X 300 is a strong fit for riders who want:

  • High-performance Sea-Doo power
  • Fast acceleration
  • Aggressive styling
  • A more race-inspired riding position
  • Seating for up to 3 riders
  • A versatile performance personal watercraft
  • A machine that stands out on the water

Whether you ride on Lake Ontario, the St. Lawrence River, the Bay of Quinte, or one of the many surrounding lakes in Eastern Ontario, the GTR-X 300 is built to deliver an exhilarating experience.


Why Choose the Sea-Doo GTR-X 300?

The GTR-X 300 is a compelling option for riders who want more than the standard GTR but don’t necessarily need a full touring-oriented performance machine.

It combines:

  • Big horsepower
  • Race-inspired ergonomics
  • A bold, aggressive look
  • Performance-focused features
  • Passenger capability
  • More versatility than some dedicated closed-course style machines

For many riders, the GTR-X hits a sweet spot between everyday fun and serious Sea-Doo performance.


2026 Sea-Doo GTR-X 300 Specifications

Below is a solid general spec layout for the page. 

Specification2026 Sea-Doo GTR-X 300
Rider capacityUp to 3 riders
EngineRotax 1630 ACE
Horsepower300 hp
Intake systemSupercharged with external intercooler
Fuel typePremium 91 octane
Fuel capacity70 L
HullPerformance-oriented hull platform
Hull materialPolytec
Brake and reverseElectronic iBR
DisplayDigital display
Riding modesEco, Sport, speed regulator, slow-speed mode
StorageFront storage plus glove box
WarrantyBRP limited warranty

 

Key Sea-Doo GTR-X 300 Features

Rotax 1630 ACE 300-HP Engine

At the heart of the GTR-X is a supercharged Rotax 1630 ACE engine producing 300 horsepower. This engine is designed for riders who want explosive acceleration, strong pull throughout the rev range, and a more intense ride every time they hit the throttle.

This makes the GTR-X ideal for riders who want:

  • More power than a standard GTR
  • Maximum excitement
  • Strong acceleration off the line
  • A more aggressive overall performance experience

For performance-focused buyers, the engine is one of the biggest reasons to move up to the GTR-X.


Aggressive, Performance-Focused Riding Experience

The GTR-X 300 is built to feel sporty, responsive, and exciting on the water. It offers a more aggressive personality than recreational Sea-Doo models such as the Spark, GTI, or GTI SE.

That makes it appealing to riders who want:

  • A more adrenaline-filled ride
  • Sharper throttle response
  • A more athletic feel
  • A watercraft that feels fast and lively every time they ride

If your goal is pure fun and excitement, the GTR-X delivers it.


Seating for Up to 3 Riders

One of the biggest advantages of the GTR-X is that it still offers room for up to 3 riders. That means you get strong performance while keeping more day-to-day flexibility than some more specialized performance watercraft.

This is useful for:

  • Solo riding
  • Riding with a passenger
  • Occasional family or couple use
  • Buyers who want one machine that can do more than one thing

The GTR-X is performance-first, but it still has practical versatility built in.


Electronic Brake and Reverse

Sea-Doo’s Intelligent Brake and Reverse (iBR) system helps make docking, loading, and low-speed manoeuvring easier and more controlled.

That’s especially helpful when:

  • Approaching a dock
  • Backing into place
  • Loading on a trailer
  • Moving around launch ramps
  • Navigating no-wake zones

For a high-horsepower machine like the GTR-X, these features add important real-world usability.


Sporty Ergonomics and Performance Feel

The GTR-X is designed to feel more performance-oriented than a standard recreational model. Its riding position and overall character are meant to help the rider feel more connected to the machine, especially during more spirited riding.

This makes it especially appealing for riders who want:

  • A more locked-in feeling
  • Better rider confidence at speed
  • A more athletic Sea-Doo personality
  • A machine that feels built for performance

Front Storage and Everyday Practicality

Even though the GTR-X is built for performance, it still includes practical storage for daily use. This makes it easier to bring along smaller gear and essentials without sacrificing the kind of excitement the model is known for.

Storage space can be useful for:

  • Life jackets
  • Dock lines
  • Sunglasses
  • Tow ropes
  • Small personal items
  • Safety equipment
  • Sunscreen and water bottles

That added convenience helps make the GTR-X a more complete ownership experience.


Bold, Aggressive Styling

The GTR-X stands out with sharp styling, strong graphics, and an unmistakably performance-driven personality. It has the kind of visual presence performance buyers usually want from a Sea-Doo in this class.

If you want a machine that looks as bold as it rides, the GTR-X checks that box.


Is the Sea-Doo GTR-X 300 Good for Beginners?

The GTR-X 300 is not usually the first model I’d recommend for a true beginner. While it does include practical features like iBR and 3-passenger versatility, it is still a 300-horsepower supercharged performance machine.

It is generally better suited to:

  • Experienced riders
  • Buyers moving up from a smaller PWC
  • Riders comfortable with faster acceleration
  • Buyers specifically looking for a more performance-driven Sea-Doo

Someone looking for a more approachable first Sea-Doo may be better served by the Spark, GTI, or GTI SE.


Is the Sea-Doo GTR-X Good for Families?

The GTR-X can work for some family or passenger use because it seats up to 3 riders, but it is really designed more for performance-minded owners than for buyers prioritizing pure comfort or relaxed family cruising.

If family comfort, ease of boarding, and all-day recreational versatility are the main priorities, many buyers may prefer:

If power, excitement, and a more aggressive feel come first, the GTR-X can still be a very appealing option.


Sea-Doo GTR-X vs GTR

The GTR 230 and GTR-X 300 are both performance-oriented Sea-Doo models, but the GTR-X takes things a step further.

Choose the GTR if you want:

  • Supercharged performance at a lower price point
  • Strong acceleration with more everyday balance
  • A more accessible entry into performance Sea-Doo ownership

Choose the GTR-X if you want:

  • More horsepower
  • A more aggressive ride
  • Race-inspired character
  • A higher-performance overall experience
  • A more premium performance feel

The GTR-X is the better fit for riders who know they want to step deeper into the performance side of the lineup.

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Sea-Doo GTR-X vs RXP-X

The GTR-X 300 and RXP-X both appeal to performance buyers, but they are aimed at slightly different riders.

Choose the GTR-X if you want:

  • Strong performance with added versatility
  • Room for up to 3 riders
  • A more practical performance machine
  • A balance of excitement and usability

Choose the RXP-X if you want:

  • A more extreme race-inspired machine
  • Sharper closed-course personality
  • More aggressive rider-focused ergonomics
  • A Sea-Doo built with a more specialized performance mission

The GTR-X is often the better fit for buyers who want serious performance without going all the way into a more specialized machine.

Sea-Doo GTR-X vs RXT-X

The GTR-X and RXT-X both offer big horsepower, but the RXT-X generally leans more toward a premium offshore performance experience, while the GTR-X is often seen as a more accessible and playful performance option.

Choose the GTR-X if you want:

  • Strong horsepower
  • A more playful and aggressive feel
  • A performance machine with strong value
  • A sporty, versatile Sea-Doo

Choose the RXT-X if you want:

  • More premium offshore performance refinement
  • A larger, more upscale performance package
  • A more full-featured high-end experience

Sea-Doo GTR-X vs RXT-X

The GTR-X and RXT-X both offer big horsepower, but the RXT-X generally leans more toward a premium offshore performance experience, while the GTR-X is often seen as a more accessible and playful performance option.

Choose the GTR-X if you want:

  • Strong horsepower
  • A more playful and aggressive feel
  • A performance machine with strong value
  • A sporty, versatile Sea-Doo

Choose the RXT-X if you want:

  • More premium offshore performance refinement
  • A larger, more upscale performance package
  • A more full-featured high-end experience

View Current Sea-Doo GTR-X Inventory | Call Us Now

Sea-Doo GTR-X 300 Questions and Answers

What is the Sea-Doo GTR-X 300?

The Sea-Doo GTR-X 300 is a high-performance personal watercraft designed to combine strong horsepower, sporty riding dynamics, and everyday versatility.

How much horsepower does the Sea-Doo GTR-X have?

The GTR-X produces 300 horsepower, making it one of the more powerful Sea-Doo models in the lineup.

Is the Sea-Doo GTR-X supercharged?

Yes. The GTR-X uses a supercharged Rotax 1630 ACE engine for strong acceleration and high-performance riding.

How many people can ride a Sea-Doo GTR-X?

The Sea-Doo GTR-X accommodates up to 3 riders, making it more versatile than some more specialized performance watercraft.

Is the GTR-X good for beginners?

It is generally better suited to more experienced riders or buyers upgrading from a smaller watercraft because of its powerful 300-horsepower performance.

What fuel does the Sea-Doo GTR-X use?

The GTR-X is typically designed to run on 91-octane premium gasoline because of its supercharged engine.

Does the Sea-Doo GTR-X have reverse?

Yes. It includes Sea-Doo’s Intelligent Brake and Reverse (iBR) system.

Is the Sea-Doo GTR-X good for families?

It can handle passengers and some recreational use, but it is mainly designed for riders who prioritize performance and excitement.

What is the difference between the GTR-X and GTR?

The GTR-X offers more horsepower and a more aggressive overall character, while the GTR is a more accessible performance model.

What is the difference between the GTR-X and RXP-X?

The GTR-X is generally more versatile and practical, while the RXP-X is more specialized and race-focused.

Where can I buy a Sea-Doo GTR-X near Kingston?

You can buy a Sea-Doo GTR-X at Cartronics Powersports in Kingston, Ontario, serving customers throughout Eastern Ontario.

View Current Sea-Doo GTR-X Inventory | Call Us Now

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