Sportbikes
1999Triumph Daytona 955I
40 fields on record
The 1999 Triumph Daytona 955i is a lightweight sport bike that appeals to riders seeking nimble handling combined with genuine performance. Its distinctive 955cc triple engine delivers 128 horsepower with a characterful mid-range punch, making it best known for blending retro British appeal with modern sportbike capability and approachable ergonomics for both road and track use.
- Capacity
- 956.0 ccm
- Engine
- In-line three-cylinder, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 198.0 kg
- Seat height
- 820 mm
- Power
- 128.0 HP (94.1 kW) @ 9900 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for spirited road riding and canyon carving, with genuine track-day capability thanks to its aluminum perimeter frame and sharp geometry.
- Built for
- The 955i in-line three delivers a distinctive, torque-rich growl and mid-range punch that gives it a more characterful feel than typical four-cylinder sport rivals.
- Not ideal for
- This is not the right bike for new riders, tall touring distances with a passenger, or anyone seeking a relaxed, upright commuting experience.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 956.0 ccm
- Power
- 128.0 HP (94.1 kW) @ 9900 RPM
- CO2 Emissions
- 14 CO2 g/km
- Torque
- 100.0 Nm (10.2 kgf-m) @ 7500 RPM
- Engine type
- In-line three-cylinder, four-stroke
- Power/weight ratio
- 0.6465 HP/kg (dry)
- Bore x stroke
- 79.0 x 65.0 mm
- Compression
- 11.2:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Digital - inductive type - via electronic engine management system
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multi-plate
Performance
- Top speed
- 253.0 km/h (157.2 mph)
Dimensions & weight
- Wheelbase
- 1440 mm
- Overall length
- 2072 mm
- Overall width
- 725 mm
- Overall height
- 1165 mm
- Seat height
- 820 mm
- Dry weight
- 198.0 kg
- Wet weight
- 224.0 kg
- Fuel capacity
- 18.00 litres
- Front percentage of weight
- 49.4
Chassis & suspension
- Frame
- Tubular, fabricated aluminium alloy perimeter
- Front suspension
- 45mm forks with dual rate springs and adjustable preload, compression and rebound damping
- Rear suspension
- Monoshock with adjustable preload, rebound and compression damping
- Front wheel travel
- 120 mm
- Rear wheel travel
- 140 mm
- Rake (fork angle)
- 22.5°
Brakes & wheels
- Front brakes
- Dual disc
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 190/50-ZR17
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1999 | 2001 | 2003 | 2004 | 2006 |
|---|---|---|---|---|---|
| Capacity | 956 cc | 955 cc | 955 cc | 955 cc | 955 cc |
| Dry weight | 198 kg | 198 kg | 191 kg | 191 kg | 191 kg |
| Seat height | 820 mm | 800 mm | 815 mm | 815 mm | 815 mm |
| Fuel capacity | 18 L | 18 L | 21 L | 21 L | 20 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 2 recalls may applyFUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGSApr 2004 · 04V156000
ON CERTAIN MOTORCYCLES, THE FUEL CONNECTOR LINKING EACH OF THE FEED AND RETURN FUEL HOSES TO THE FUEL PUMP MOUNTING PLATE MAY FRACTURE FOLLOWING IN-SERVICE HANDLING.
Risk: FUEL COULD ESCAPE FROM THE FRACTURED BODY OF THE CONNECTOR ONTO THE ENGINE OR SIDE OF THE BIKE. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, CAN RESULT IN A FIRE.
Remedy: DEALERS WILL REPLACE THE CONNECTOR. THE RECALL BEGAN ON JULY 30, 2004. OWNERS SHOULD CONTACT TRIUMPH AT 1-678-854-2010.
ENGINE AND ENGINE COOLING:ENGINEApr 1999 · 99V083000
VEHICLE DESCRIPTION: MOTORCYCLES. OIL CAN LEAK FROM BETWEEN THE CRANKCASE HALVES.
Risk: THIS CAN RESULT IN OIL SPILLAGE FORWARD OF THE REAR TIRE AND COULD, IN SOME CASES, CAUSE VEHICLE INSTABILITY.
Remedy: DEALERS WILL REPLACE THE LOWER CRANKCASE BOLTS.
These recalls cover some 1999 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.
Source: NHTSA. View all Triumph recalls →
Rider Reviews
Common questions
What is the engine size of the Triumph Daytona 955I?
The 1999 Triumph Daytona 955I has a Capacity of 956.0 ccm (58.34 cubic inches).
What engine power does the Triumph Daytona 955I have?
The 1999 Triumph Daytona 955I has a Power of 128.0 HP (94.1 kW) @ 9900 RPM.
How many gears does the Triumph Daytona 955I have?
The 1999 Triumph Daytona 955I has a Gearbox of 6-speed.
What is the torque of the Triumph Daytona 955I?
The 1999 Triumph Daytona 955I has a Torque of 100.0 Nm (10.2 kgf-m or 73.8 ft.lbs) @ 7500 RPM.
How much does the Triumph Daytona 955I weigh?
The 1999 Triumph Daytona 955I has a Dry weight of 198.0 kg (436.5 pounds).
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