The fastest jet ski you can buy off a showroom floor is the Sea-Doo RXP-X 325, and in US trim it runs into a 70 mph electronic wall. That cap is the reason spec sheets and GPS readings rarely match.
Every US-market ski from Sea-Doo, Yamaha, and Kawasaki is limited at or below it, which leaves acceleration, hull design, and weight to separate one performance ski from the next.
Top speed is only one piece of what makes these machines fast to ride. A ski can post a big number on a straight run and still feel slow coming out of a turn, or wear down a rider if the hull fights the chop.
Acceleration and handling shape the experience as much as the number on the display.
Here are the fastest jet skis on sale right now, with verified top speeds, dry weights, prices, and the type of rider each one suits.
What Is the Fastest Jet Ski You Can Buy?
That title belongs to the Sea-Doo RXP-X 325. Sea-Doo’s own figures put the RS version sold in Australia at close to 120 km/h, or about 75 mph, once fully run in. Nothing else on the market gets close.
Independent VBox testing on a 2026 RXP-X 325 RS recorded a lower number: 117 km/h, or 73 mph in Australia. The US-spec version runs even slower, capped at around 112 km/h, or 70 mph.
Part of that gap comes from the electronic speed limiter every manufacturer builds in, for safety and to meet regional rules.
Rider weight, fuel load, and chop move the real number too, and so does break-in time. A new RXP-X is held to 8,000 rpm until the engine is run in, against 8,250 rpm once it is, which costs a few miles per hour off the top end.
|
What about the fastest jet ski ever recorded? That is a different question, because the record numbers come from modified skis rather than anything sold with a warranty. Aftermarket bypass units defeat the factory limiter, and a tuned Ultra 310 or RXP-X on a supercharger and impeller upgrade has been reported past 80 mph. Those builds sacrifice reliability and fuel range, and they sit outside what any dealer will sell or service. At those speeds, life jacket rules stop being paperwork and start being the thing that decides how a bad day ends. |
Fastest Jet Skis Compared
| Model | Top Speed | Horsepower | Engine | Dry Weight | 0 to 60 mph | MSRP (2026) | Best For |
|---|---|---|---|---|---|---|---|
| Sea-Doo RXP-X 325 | ~73 to 75 mph (70 mph US-spec) | 325 hp | 1630cc supercharged Rotax | 778 lb | ~3.6 sec | From about $19,000 | Solo riders who want the outright fastest ski |
| Sea-Doo RXT-X 325 | ~70 mph US-spec | 325 hp | 1630cc supercharged Rotax | 842 lb | ~4 sec | $21,899 | Riders who want RXP-X power with more comfort |
| Kawasaki Ultra 310LX | 67 mph | 310 hp | 1498cc supercharged inline-4 | ~950 lb | ~4.5 sec | About $22,000 | Touring riders who want power and comfort together |
| Yamaha GP SVHO | 67 mph | ~250 hp | 1812cc supercharged SVHO | 754 lb | ~3.8 sec | $19,199 | Riders who want a lighter, race-style hull |
| Yamaha FX SVHO | 67 mph | ~250 hp | 1812cc supercharged SVHO | ~866 lb | ~4.5 sec | From about $19,500 | Long-distance riders who still want speed |
Yamaha does not publish an official horsepower figure for the SVHO engine; the figures above reflect independent estimates, not a factory claim. Acceleration times are drawn from independent GPS and VBox testing, not factory claims, and vary with rider weight and water conditions. Prices are US MSRP before freight and setup.
Top 5 Fastest Jet Skis You Can Buy in 2026
If speed is your main priority, these five jet skis stand out for their top speeds, engines, and performance-focused hulls.
1. Sea-Doo RXP-X 325
The RXP-X 325 is the benchmark every other performance ski on this list gets measured against.
It runs a supercharged 1630cc three-cylinder Rotax engine producing 325 horsepower, the same engine found in the RXT-X, but housed in a smaller, lighter hull built for outright speed.
At 778 pounds dry, it carries 64 pounds less than the RXT-X while making identical power, which is where the acceleration advantage comes from.
Features:
- Supercharged 1630cc Rotax engine, 325 hp
- T3-R deep-V racing hull, 778 lb dry
- 10.25-inch touchscreen display (2026, optional Tech Package)
- Redesigned handlebar toggles
- Three-position hydraulic steering damper
- 40.6 gallons of total storage, 18.5-gallon fuel tank
| Pros | Cons |
|---|---|
| Fastest acceleration on this list | Cockpit runs tight for taller riders |
| Strong storage for a mid-size hull | Not ideal for first-time performance buyers |
| Adjustable steering damper for high-speed control | Touchscreen costs extra |
Why buy it: The RXP-X 325 is the right call for a solo rider who wants the outright fastest ski available and doesn’t mind trading some comfort for sharper handling and harder acceleration.
2. Sea-Doo RXT-X 325
The RXT-X 325 shares its engine and horsepower with the RXP-X but is built on Sea-Doo’s larger ST3 platform, trading some of that razor-sharp handling for stability and comfort on longer rides. It weighs 842 pounds dry and carries three riders instead of two.
Features:
- Supercharged 1630cc Rotax engine, 325 hp
- Larger ST3 hull platform, 842 lb dry
- More stable ride in rough water
- Three-seat layout with height-adjustable handlebars
- Seating built for extended time on the water
| Pros | Cons |
|---|---|
| Same power as the RXP-X with more comfort | Slightly less sharp handling than the RXP-X |
| Handles rough water better | Larger hull sacrifices some agility |
| Better suited to full-day rides | Costs more than the faster RXP-X |
Why buy it: The RXT-X 325 works well for riders who want RXP-X-level speed but plan to spend full days on the water rather than short, aggressive bursts.
3. Kawasaki Ultra 310LX
The Ultra 310LX runs a 1498cc supercharged inline-four producing 310 horsepower, the highest figure Kawasaki publishes.
Top speed is limited to 67 mph across the whole Ultra 310 range, and it reaches 60 mph in roughly 4.5 seconds.
At around 950 pounds dry it is the heaviest ski here, which is what keeps it off the top of the speed column despite the second-highest horsepower number.
If the 310LX feels like more ski than you need, the Ultra 310X uses the same engine in a shorter, lighter hull without the luxury features.
Features:
- Supercharged 1498cc inline-four engine, 310 hp
- Smart Steering system
- All-day touring seat
- Deep-V hull with a 22.5-degree keel angle for chop
- 20.6-gallon fuel tank and 56 gallons of sealed storage
| Pros | Cons |
|---|---|
| Comfortable enough for all-day rides | Not the outright fastest on this list |
| Handles chop well | Larger and heavier than race-style hulls |
| Smart Steering makes high power manageable | Supercharger service interval is short at 100 hours |
Why buy it: The Ultra 310LX suits touring riders who want serious power without giving up comfort on longer outings.
4. Yamaha GP SVHO
Yamaha does not publish a horsepower figure for the SVHO engine, and independent estimates put it near 250, well under the Sea-Doo and Kawasaki numbers.
The GP SVHO closes most of that gap with weight. At 754 pounds dry it is the lightest ski on this list, lighter than the RXP-X, and it reaches 60 mph in about 3.8 seconds.
Yamaha sold this model as the GP1800R SVHO through 2023 before shortening the name.
Features:
- 1.8-liter supercharged SVHO engine, ~250 hp (estimated)
- Yamaha’s lightest performance hull at 754 lb dry
- Race-oriented design and handling
- Sharp throttle response
- Lowest price of the five at $19,199
| Pros | Cons |
|---|---|
| Lightest hull in this comparison | Lowest horsepower on paper |
| Sharp, race-ready handling | Less comfortable for long rides |
| Keeps pace with higher-horsepower rivals | Official power figures aren’t published |
Why buy it: The GP SVHO fits riders with a racing background who prioritize a light, responsive hull over comfort or raw horsepower numbers.
5. Yamaha FX SVHO
The Yamaha FX SVHO uses the same 1.8-liter supercharged engine as the GP SVHO but sits on Yamaha’s larger, comfort-focused FX platform. The trade is about 110 pounds of extra weight, which shows up as a slower run to 60 mph and a steadier ride in chop.
Features:
- 1.8-liter supercharged SVHO engine, ~250 hp (estimated)
- Larger FX comfort-oriented hull, around 866 lb dry
- 18.5-gallon fuel tank and 44 gallons of storage
- Additional onboard storage
| Pros | Cons |
|---|---|
| SVHO performance with added comfort | Heavier than the GP SVHO |
| Larger fuel tank for longer rides | Same unpublished horsepower figure as the GP SVHO |
| More storage for full-day outings | Slowest acceleration of the five |
Why buy it: The FX SVHO is the better pick for riders who want SVHO-level speed but plan on full days out rather than quick, aggressive rides.
What Makes a Jet Ski Fast?
Horsepower gets most of the credit, and it explains less than buyers expect. Four other factors decide what a ski actually does on the water.
- Supercharger: It forces extra air into the cylinders, letting the engine burn more fuel and generate more power without growing the block itself. Every ski on this list uses one, and no naturally aspirated model comes close enough to make the cut.
- Hull Shape: A narrower, lighter hull cuts through water with less resistance, which shows up directly in acceleration and top speed. Go wider and heavier and stability improves, but that costs outright speed.
- Weight: Weight can erase a horsepower gap outright. The Yamaha GP SVHO makes an estimated 250 hp against the RXP-X’s 325, yet it weighs 754 pounds to the Sea-Doo’s 778 and posts a similar run to 60 mph. The Kawasaki carries 60 more horsepower than the Yamaha and about 200 more pounds, and it is the slower of the two. Less weight means less for the engine to push.
- Jet Pump: Water gets pulled in through the intake grate and forced out through the impeller to create thrust, and a poorly shaped impeller wastes energy through cavitation instead of pushing the ski forward.
- Speed Limiter: Every manufacturer caps the top end in software long before the engine reaches its mechanical ceiling. In the US that cap sits at 70 mph across all three brands, which is the main reason claimed top speeds and GPS readings rarely line up.
How Fast Can a Jet Ski Really Go?
An entry-level recreational jet ski, built for family outings and casual weekend use, tops out somewhere between 40 and 55 mph. That’s already plenty fast for most riders, especially anyone new to the sport.
Performance models covered here live in a different category, generally landing between 65 and 70 mph in US trim, and a longer list of jet ski speed factors explains the spread within each class. Push into racing builds or heavily modified engines and speeds past 80 mph become possible, though those builds aren’t something anyone takes out for a casual ride.
There’s also a gap between what a manufacturer claims and what a GPS actually reads on the water. Wind shifts the number, so does water current, rider weight, and air temperature.
A GPS reading taken while riding tends to be more reliable than whatever figure appears on a spec sheet.
Running an outfitting operation, I watch the same craft post different numbers all season depending on load, wind, and how warm the air is. Two riders and a full tank cost real speed, and no spec sheet accounts for it.
Is the Fastest Jet Ski Worth Buying?
A high-performance jet ski rewards riders who already have real time on the water and want the extra acceleration a supercharged engine delivers.
For someone newer to the sport, that same horsepower paired with a quick-turning hull can become a liability instead of a benefit. I have put enough first-timers on the water to know the pattern: the riders who struggle are almost always the ones who bought more machine than their hours justified.
Check the age and licensing rules in your state before you buy, since several require a safety certificate.
Fuel is a factor that tends to get overlooked until the first tank runs dry faster than expected.
An engine producing 300-plus horsepower with a supercharger burns fuel noticeably faster, and maintenance costs climb too, since supercharged systems demand more upkeep.
All three brands specify premium fuel, and Kawasaki calls for supercharger service every 100 hours. On an 18.5-gallon tank ridden hard, a full day on the water can mean two fill-ups.
For everyday recreational riding, a mid-range ski usually delivers better value and lower running costs. The fastest jet ski models here earn their $19,000 to $22,000 price tags for riders who ride solo, ride often, and put that performance to use.
Frequently Asked Questions
What Is the Fastest Production Jet Ski, and How Fast Does It Go?
The Sea-Doo RXP-X 325 holds that title, with Sea-Doo’s own figures putting the RS trim close to 75 mph. Independent VBox testing from WatercraftZone recorded 73 mph once fully run in. The US-spec version tops out near 70 mph, since it follows Coast Guard rules the Australian RS trim doesn’t have to meet.
How Much Does the Fastest Jet Ski Cost?
Expect $19,000 to $22,000 before freight and setup for any of the five skis here. The Yamaha GP SVHO is the cheapest at $19,199 and the Sea-Doo RXT-X 325 runs $21,899.
Can a Jet Ski Go Faster Than 70 MPH?
Not in stock US trim, since all three manufacturers limit top speed in software. Aftermarket bypass units and supercharger work can push a modified ski past 80 mph, at the cost of reliability, fuel range, and usually the warranty.
Which Brand Makes the Fastest Jet Skis?
Sea-Doo, currently, by a clear margin. Both the RXP-X 325 and RXT-X 325 outrun the fastest models Kawasaki and Yamaha currently sell. Worth knowing that Kawasaki owns the Jet Ski name and Yamaha sells WaveRunners, a distinction covered in our Jet Ski vs WaveRunner guide.
What’s the Difference Between Top Speed and Acceleration?
Top speed is the fastest a ski can sustain at full throttle. Acceleration is how quickly it reaches a given speed, usually tracked from 0 to 60 mph. A modest top speed still feels fast if the ski gets there quickly, and a high top speed feels sluggish if it takes its time.
Which Fastest Jet Ski Fits Your Riding?
The RXP-X 325 sits at the top of this list right now, with the RXT-X 325 close behind. Kawasaki and Yamaha aren’t far off either, and both make a legitimate case depending on what a rider wants from a day on the water.
The Yamaha GP SVHO in particular deserves a look from anyone who cares more about how a ski turns than what the horsepower sticker says.
Once every ski in this class runs into the same 70 mph limiter, the number on the box stops being the deciding factor. Weight, hull shape, and how a ski behaves in chop matter more, and so does experience level.
A hull built for sharp, aggressive handling can feel unmanageable to someone who hasn’t spent much time on the water yet.
Book a demo ride on your top two before you sign anything. Fifteen minutes on the water tells you more about whether the fastest jet ski on paper is the right one for you than any spec sheet can.
