Triumph 2500 Rocket III GT Storm 2024 — Specifications

Who could possibly need 2,458 cc between their legs? Triumph, apparently, thinks the answer is "everyone." The 2024 Rocket III GT Storm picks up the torch of the most muscular cruiser ever sold and injects an extra dose of brutality. The triple cylinder, already colossal in its previous version, jumps from 167 to 182 horsepower thanks to work on the valve timing, valves, and a compression ratio raised to 10.8:1. Fifteen extra horses, harvested a bit higher in the rev range, at 7,000 rpm. Torque climbs to 225 Nm from just 4,000 rpm. For perspective, those are the kind of figures you find on certain sports sedans, not on a motorcycle. And yet, this Triumph passes Euro 5+ without breaking a sweat.

On the chassis side, Triumph didn't see fit to overhaul everything. The aluminum frame, the 47 mm inverted fork with its 120 mm of travel, and the mono-shock remain identical. The real novelty lies in the wheels: redesigned rims, one kilo lighter, wrapped in Metzeler Cruisetec tires — 150/80-17 at the front and 240/50-16 at the rear. When you're moving 320 kg wet, every kilo saved on unsprung mass counts. The braking system means business. Two 320 mm Brembo discs gripped by radial-mount four-piston calipers up front, a 300 mm disc and a four-piston caliper at the rear. That's the kind of hardware usually found on pure sportbikes, and it's reassuring given the sheer size of the machine.

The GT sets itself apart from the R variant with ergonomics geared toward touring. The handlebar sits 125 mm further back, the footpegs adjust across three positions with 50 mm of horizontal range, and the seat drops to 750 mm. The passenger benefits from a better-padded seat and a height-adjustable sissy bar. A larger windscreen offers more wind protection, and heated grips come as standard. For a cruiser of this size, the riding position remains decidedly custom — feet and hands on the same axis — but with comfort that allows long stretches without wrecking your back.

The Storm designation also translates visually. Triumph has dipped the entire machine in a bath of black: subframe, fork yokes, exhausts, foot controls, levers, caliper brackets, headlight bezels, kickstand. Raw metal survives only in touches — on the fuel cap, the steel belt, and a few machining traces on the engine. The effect works, more menacing than flashy. On the electronics front, nothing new, but the spec sheet was already generous: four riding modes, lean-sensitive traction control, cornering ABS, full LED lighting, keyless ignition, color TFT dash, cruise control, and a USB port under the seat. The quickshifter remains optional — the only minor gripe at this price point.

And speaking of price. At €27,195, the Rocket III GT Storm plays in a category where it simply has no direct competitor. The Ducati Diavel V4 or the BMW R 18 Transcontinental operate in different registers, with displacements and philosophies that don't compete on the grounds of raw torque. This Triumph is aimed at the rider who wants the ultimate mechanical spectacle, the sensation of sitting on an engine with two wheels around it. Not a beginner's machine, not a track tool, not a versatile adventure bike. A rolling monument of 2.5 liters that turns every twist of the throttle into a seismic event. With the Storm edition, Triumph confirms that excess is an art worth cultivating.