Engineered by Triumph for the sport motorcycle segment, the 2003 Triumph Daytona 955i pairs a 955 cc (58.3 cu in) liquid-cooled in-line three, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 149 HP (108.8 kW) at 10,700 rpm while maximum torque reaches 100 Nm (73.8 lb-ft) at 8,200 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 156 HP per liter and a 2,500 rpm working window between peak torque (8,200 rpm) and peak power (10,700 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the Daytona 955i measures 224 kg (494 lbs) wet (curb), translating to a power-to-weight ratio of 0.67 HP/kg (1.5 kg per horsepower). Rider ergonomics and chassis geometry center around a 815 mm (32.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,426 mm (56.1 in) wheelbase engineered for balanced agility and highway composure. The 21-liter (5.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 260 km/h (162 mph).
Within MotoLibrary's Triumph archive, this model family spans 7 indexed model years from 1999 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
156 HP/L
Power-to-Weight
0.67 HP/kg (1.5 kg/HP)
Power Band Window
8,200–10,700 rpm
Standover Height
815 mm (32.1 in)
Engine
Displacement955.0 ccm (58.27 cubic inches)
Engine TypeIn-line three, four-stroke
Engine DetailsIn-line three, four-stroke
Power149.0 HP (108.8 kW)) @ 10700 RPM
Torque100.0 Nm (10.2 kgf-m or 73.8 ft.lbs) @ 8200 RPM
Compression12.0:1
Bore x Stroke79.0 x 65.0 mm (3.1 x 2.6 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionDigital - inductive type - via electronic engine management system
LubricationWet sump forced lubrication with oil cooler
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.
