At the heart of the 2022 Triumph Rocket 3 GT 221 custom - cruiser motorcycle, Triumph utilizes a 2458 cc (150 cu in) liquid-cooled in-line three, four-stroke layout. In factory specification, peak output is rated at 165 HP (120.4 kW) at 6,000 rpm while maximum torque reaches 221 Nm (163 lb-ft) at 4,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and shaft drive (cardan) final drive. With a specific output of 67.1 HP per liter and a 2,000 rpm working window between peak torque (4,000 rpm) and peak power (6,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Rocket 3 GT 221 measures 294 kg (648 lbs) dry, translating to a power-to-weight ratio of 0.56 HP/kg (1.78 kg per horsepower). Rider ergonomics and chassis geometry center around a 750 mm (29.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,677 mm (66 in) wheelbase engineered for planted straight-line stability. The 18-liter (4.8 US gal) fuel tank paired with a rated consumption of 6.82 L/100 km provides an estimated theoretical range of roughly 264 km (164 miles) between fill-ups.
Within MotoLibrary's Triumph archive, this model family spans 2 indexed model years from 2022 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
67.1 HP/L
Power-to-Weight
0.56 HP/kg (1.78 kg/HP)
Power Band Window
4,000–6,000 rpm
Theoretical Range
~264 km (164 mi)
Engine
Displacement2458.0 ccm (149.99 cubic inches)
Engine TypeIn-line three, four-stroke
Engine DetailsCounter rotating crankshaft
Power165.0 HP (120.4 kW)) @ 6000 RPM
Torque221.0 Nm (22.5 kgf-m or 163.0 ft.lbs) @ 4000 RPM
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
