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Motorcycle specifications Triumph2500 Rocket III GT Storm 2026 Installed on a hurricane

Cruiser
Photo of Triumph 2500 Rocket III GT Storm 2026

presentation of the 2500 Rocket III GT Storm 2026

Feet well forward, paws locked on the handlebars, grunt between the knees, you're sitting on a buffalo that's not yet awake. Now all you have to do is slam the c....lles into him by turning the throttle hard. That's what the Rocket III GT Storm is all about, with a ladleful of fury thrown in for good measure.

for 20 years, this machine has been a Hulk in the motorcycle microcosm. Powered by an enormous 3-cylinder, it boasts the most phenomenal displacement and torque on the market. The latest version boasted 167 hp and over 22 mkg of torque. But that was before it became Storm. This attraction to the storm boosts the performance of the 2.5-liter engine. With work on camshafts, valves and compression ratio, the stable grew to 182 boarders!

9% more power. The Rocket III will require the extra 15 hp to be extracted from a few 1000 rpm. Great, even more exhilaration and vertigo from climbing the revs while having your head ripped off. A little more torque too, 4 Nm. It even takes the liberty of blowing its nose at the Euro5b standard. And how do you brake?

Triumph 2500 Rocket III GT Storm 2026 - 1Triumph 2500 Rocket III GT Storm 2026 - 1

The same way as before. The Storm name doesn't come with any major changes to the chassis. Only the wheels have changed: the redesigned rims are a kilo lighter and fitted with Metzeler Cruisetec tires. The generous dimensions of 150 mm at the front and 240 mm at the rear go hand in hand with big brakes. Brembo Stylema 4-piston radial calipers work around 320 mm discs - the same stuff found on most hypersports. The rear is also consistent, with a 4-piston caliper for a large 300 mm disc. The aluminum frame, 47 mm inverted fork and monoshock anchored to the large cardanic monobar remain unchanged.

Neither has the riding position. Compared to the R Storm, the GT adopts a more relaxed posture. The handlebars are further back (by 125 mm) and the feet are in line with the hands, imposing a custom attitude. The seat is lower and the footrests can be adjusted to 3 positions, 50 mm horizontally. The passenger seat is also more welcoming than on the R, with more padding and a height-adjustable sissy bar. The front is more protective, with a larger transparent bubble. Heated grips come as standard.

Triumph 2500 Rocket III GT Storm
the Rocket III's increased power is accompanied by a change of tone. The Dark takes up residence, with a black finish for the rear sub-frame, fork tees, exhaust assembly, fork tees, foot controls, levers, brake caliper brackets, headlight surround and kickstand. A real stormy night for this machine. Lightning can only glint off the fuel cap, its steel belt, the "Rocket 3 GT" badge under the seat, and the few threads of machining on the engine.

What do the electronics say? Status quo. The basket was already well-stocked. Rocket IIIs feature 4 riding modes (Road - Sport - Rain - Configurable), angle-sensitive traction control, cornering ABS, full LED lighting, keyless keyless entry, dual-theme color TFT instrument panel, cruise control, backlit switches, roll-back assist and under-seat USB port. The shifter is optional. As for other modules, she says, why bother? Glide control? I don't ride the track. Launch Control? It would blow up in no time. Radar? It's the others who get out of the way when I arrive. 320 kg projected by a catapult, it'll crack your road.

With this Strom evolution, the Rocket III GT perpetuates its status as the most insane cruiser on the market. It's a little more expensive than the R, a little more comfortable, but still just as demonic when provoked.

M.B. - Manufacturer's photos


Key facts Triumph 2500 Rocket III GT Storm (2026) : What you need to know before you buy

Prices

Basic version
flag FranceFrance
27,695€

Bikers' reviews

of 3 reviews

Model sold in 2024 2025 2026

Replace 2500 Rocket III GT Storm 2025

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2500 Rocket III GT Storm 2025

Performance

Specifications Triumph 2500 Rocket III GT Storm 2026

Chassis
Two-seater saddle
Frame : struture en aluminium
Fuel capacity : 18 liters (4.76 US gallons)
Seat height : 750 mm (29.53 in)
Length : 2,365 mm (93.11 in)
Width : 920 mm (36.22 in)
Min height : 1,183 mm (46.57 in)
Wheelbase : 1,677 mm (66.02 in)
Weight when fully loaded : 320 kg (705 lb)
Front axle
Telehydraulic inverted forks Ø 47 mm, Wheel travel : 120 mm (4.72 in)
Angle de chasse : 27.9 °
Compression and rebound adjustment
Braking 2 Brembo discs Ø 320 mm (12.6 in), radial mounting, 4-piston caliper
Front tire (Tubeless) : 150 / 80 - 17 → Order this type of tire
Pressure : 2.9 bar
Transmission
6 stage gearbox , manual - optional shifter
Secondary cardan shaft
Rear axle
Mono-damper, Wheel travel : 107 mm (4.21 in)
Preload adjustment
Braking 1 Brembo disc Ø 300 mm (11.81 in), 4-piston caliper (monobloc M4 32)
Rear tire (Tubeless) : 240 / 50 - 16 → Order this type of tire
Pressure : 2.9 bar
Motor
3 cylinders online , 4 strokes
Injection
Cooling system : liquid
2 ACT
4 valves per cylinder
2,458 cc
182 ch (179.50 hp) to 7,000 rpm
22.94 mkg (225 Nm) to 4,000 rpm
Power-to-weight ratio : approximately 1.7 kg/ch
Weight / torque ratio : approximately 13.27 kg/mkg
Compression : 10.8 : 1
Starting system : electric
CO² emissions: 152 g/km
Anti-pollution standard : Euro 5+
Standard equipment
Brake assist : ABS
Number of riding modes : 4
ABS Cornering
Aluminium rims
Gear indicator
Cruise control
Bluetooth
USB plug
Hill Hold Control
Keyless ignition
Traction control
Heated grips
Anti-slip clutch
Adjustable footrests
Inertial measurement system
Backlit switchgear
Practical information
Take care of your motorcycle! Find all the parts and maintenance products you need to keep your bike in top condition.
Motorcyle equipment adapted for all members of the family and security elements.

Models

2025

2024

Compare the 2500 Rocket III GT Storm to its competitors

Fuel consumption

Triumph 2500 Rocket III GT Storm 2026 : 6.60 liters/100km (0.36 mpg)
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 5.50 liters/100km (0.43 mpg)

Range

Triumph 2500 Rocket III GT Storm 2026 : 273 km (170 miles)
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 344 km (214 miles)

Torque

Triumph 2500 Rocket III GT Storm 2026 : 22.94 mkg
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 17.6 mkg

Power

Triumph 2500 Rocket III GT Storm 2026 : 182 ch (179.50 hp)
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 114 ch (112.40 hp)

Power-to-Weight ratio

Triumph 2500 Rocket III GT Storm 2026 : 1.7 kg/ch *
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 2.56 kg/ch *

Torque-to-Weight ratio

Triumph 2500 Rocket III GT Storm 2026 : 13.27 kg/mkg *
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 16.35 kg/mkg *

Speed

Triumph 2500 Rocket III GT Storm 2026 : approximately 240 km/h (149.10 mph)
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : over 180 km/h (111.80 mph)

CO² emissions

Triumph 2500 Rocket III GT Storm 2026 : 152 g/km
Harley-Davidson 1920 Softail Low Rider ST FXLRST 2026 : 128 g/km

Bikers' reviews Leave a review - 3 reviews

French La cagouille Model 2025
Fantastic bike, I own exactly this one. Having owned a lot of HARLEYs, I've just switched to Triumph because I'm no longer happy with HD.

What acceleration, dazzling acceleration at all revs, but especially from 3500 to 4500 rpm. Easy to handle, the braking is impressive, especially coming from HARLEY. Superb finish, decent fuel consumption if you ride quietly, practical heated grips.

Even the exhaust gives off a nice, throaty wail that doesn't need changing, and I love the pop and bang when you let off the throttle. Very good low-beam lighting, fairly legible speedo but complex to handle. Positive point for the illuminated controls, top-notch. Not too expensive to insure compared with a sports bike.
Rating : 5/5
French Alain81 Model 2025
I tried out the old models (with 100 hp) a few years ago and loved the torque, the look and the bestiality of this big bike! This one appeals to me too, even if I'm looking for something lighter now... Rating : 5/5
Un monstre absolu
French Zzriste Model 2024
Incredible, magnificent, delirious, monumental. I don't know if I'll ever dare ride this monster Rating : 5/5
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FAQ Your frequently asked questions about the 2500 Rocket III GT Storm 2026

What is the power of the 2500 Rocket III GT Storm 2026?
The 2500 Rocket III GT Storm 2026 develops a power of 182 ch (179.50 hp)
What is the torque of the 2500 Rocket III GT Storm 2026?
The maximum torque of the 2500 Rocket III GT Storm 2026 is 22.94 mkg (225 Nm) to 4,000 rpm.
What is the maximum speed of the 2500 Rocket III GT Storm 2026?
The 2500 Rocket III GT Storm 2026 is capable of reaching a top speed of approximately 240 km/h (149.10 mph) on the track.
What is the weight of the 2500 Rocket III GT Storm 2026?
The 2500 Rocket III GT Storm 2026 has a a weight when fully loaded of 320 kg (705 lb).
What is the fuel consumption of the 2500 Rocket III GT Storm 2026?
Average fuel consumption is estimated at 6.60 l/100km (0.36 mpg) according to the WMTC cycle.
QWhat is the seat height of the 2500 Rocket III GT Storm 2026?
To ensure good accessibility, the 2500 Rocket III GT Storm 2026 offers a minimum seat height of 750 mm (29.53 in).
What is the price of the 2500 Rocket III GT Storm 2026?
The price of the 2500 Rocket III GT Storm 2026 is 27,695€ in France
What colors are available for the 2500 Rocket III GT Storm 2026?
For the 2026 model year, the 2500 Rocket III GT Storm is available in several colors: black / blue, grey / black, red / black and grey / black.