At the heart of the 2021 Suzuki Katana sport motorcycle, Suzuki relies on a 999 cc (61 cu in) liquid-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 147.5 HP (107.7 kW) at 10,000 rpm while maximum torque reaches 108 Nm (79.7 lb-ft) at 9,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 147.6 HP per liter and a 500 rpm working window between peak torque (9,500 rpm) and peak power (10,000 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the Katana measures 215 kg (474 lbs) wet (curb), translating to a power-to-weight ratio of 0.69 HP/kg (1.46 kg per horsepower). Rider ergonomics and chassis geometry center around a 825 mm (32.5 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,460 mm (57.5 in) wheelbase engineered for balanced agility and highway composure. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Suzuki archive, this model family spans 8 indexed model years from 2019 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
147.6 HP/L
Power-to-Weight
0.69 HP/kg (1.46 kg/HP)
Power Band Window
9,500–10,000 rpm
Standover Height
825 mm (32.5 in)
Engine
Displacement999.0 ccm (60.96 cubic inches)
Engine TypeIn-line four, four-stroke
Power147.5 HP (107.7 kW)) @ 10000 RPM
Torque108.0 Nm (11.0 kgf-m or 79.7 ft.lbs) @ 9500 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.
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.
