Bike Segment:
Naked sportbike, performance-oriented motorcycle.
Target Audience:
Enthusiasts, owners requiring detailed maintenance and repair information.
Key Competitors 2002:
Ducati Monster series, Yamaha FZS/FZ1, Suzuki Bandit, Kawasaki ZRX series, Honda CB900F/Hornet.
Bike Strengths:
Torquey three-cylinder engine, distinctive styling, agile handling, strong braking performance.
Engine Systems:
Engine mechanicals (cylinder head, block, pistons, crankshaft), fuel injection, ignition system, cooling system, lubrication system, exhaust system.
Drivetrain Systems:
Clutch operation and adjustment, gearbox overhaul, final drive (chain and sprockets).
Chassis Systems:
Front fork (suspension, seals), rear shock absorber, steering system, frame inspection and repair.
Braking Systems:
Front and rear brake calipers, master cylinders, brake lines, disc replacement, bleeding procedures.
Electrical Systems:
Wiring diagrams, starter motor, alternator, battery, lighting circuits, instrument panel, ECU diagnostics (basic).
Bodywork And Trim:
Panel removal and installation, seat, fairings, tank.
Maintenance Procedures:
Oil and filter changes, air filter replacement, spark plug inspection and replacement, chain adjustment and lubrication, brake fluid replacement, coolant replacement.
Repair Procedures:
Engine top-end rebuild, clutch replacement, gearbox disassembly/reassembly, fork seal replacement, brake caliper rebuild, starter motor replacement.
Troubleshooting Guides:
Diagnosis of common performance issues, electrical faults, starting problems, braking issues.
Diagnostic Procedures:
Basic fault code reading (if applicable to the 2002 model's diagnostics), electrical continuity testing.
Depth:
Comprehensive, covering routine maintenance, intermediate repairs, and complete engine/chassis overhauls.
Detail Level:
Step-by-step instructions with torque specifications, special tool requirements, and clear diagrams/illustrations.
Engine Type:
Liquid-cooled, 12-valve, DOHC inline three-cylinder
Bore X Stroke:
74 mm x 74.4 mm
Compression Ratio:
11.2:1
Horsepower Crank:
Approximately 117.3 hp @ 9,750 rpm (manufacturer claim)
Torque Crank:
Approximately 71.5 ft-lbs (96.7 Nm) @ 7,500 rpm (manufacturer claim)
Fuel Delivery:
Electronic Fuel Injection (EFI) with dual injectors per cylinder (likely).
Fuel Type:
Unleaded gasoline, minimum 95 RON (Research Octane Number).
Oil Type:
SAE 10W-40, API SG or higher, JASO MA certified motorcycle oil.
Oil Capacity With Filter:
Approximately 3.7 liters (3.9 US quarts)
Coolant Type:
Ethylene glycol based coolant with corrosion inhibitors, mixed 50/50 with distilled water.
Length:
Approximately 2110 mm (83.1 in)
Width Handlebar:
Approximately 750 mm (29.5 in)
Height Seat:
Approximately 830 mm (32.7 in)
Dry Weight:
Approximately 187 kg (412 lbs)
Wet Weight Estimated:
Approximately 211 kg (465 lbs) (with full fluids)
Fuel Capacity:
18 liters (4.75 US gallons)
Safety Certifications:
Compliant with European and US safety standards of the era.
Braking System Front:
Twin 320mm discs with four-piston calipers (e.g., Nissin).
Braking System Rear:
Single 255mm disc with two-piston caliper (e.g., Nissin).
Suspension Front:
Telescopic forks, 43mm stanchion diameter, adjustable preload and rebound damping (e.g., Showa).
Suspension Rear:
Monoshock with adjustable preload and rebound damping, rising rate linkage.
Lighting:
Dual headlamps, LED tail light, standard indicators.
Infotainment System:
N/A (Analog instruments, no integrated infotainment).
Driver Assistance Features:
N/A (No electronic rider aids like ABS, traction control, or riding modes).
Connectivity Features:
N/A
Ignition Type:
Electronic ignition with crank position sensor and coil-on-plug or similar system.
Diagnostic Port:
Likely has a diagnostic connector for basic fault code retrieval (specific connector and protocol would be detailed in manual).
Oil Change Interval:
Every 6,000 miles (10,000 km) or 12 months, whichever comes first.
Major Service Interval:
Every 12,000 miles (20,000 km) for valve clearance checks, spark plugs, and coolant. Timing chain inspection recommended periodically.
Chain Lubrication Interval:
Every 500 miles (800 km) and after riding in wet conditions.
Coolant Capacity:
Approximately 2.2 liters (2.3 US quarts)
Fork Oil Type:
Triumph recommends specific Showa SS-01 or equivalent (e.g., 10W).
Fork Oil Capacity:
Approximately 495 ml per fork leg.
Common Wear Items:
Stator and R/R (Rectifier/Regulator) failures, fork seal leaks, clutch slave cylinder leaks, cam chain tensioner wear.
Potential Electrical Issues:
Wiring harness chafe points, especially around the steering head; battery drain issues if charging system is faulty.
Engine Performance Quirks:
Can be sensitive to fuel quality, some units may benefit from ECU remapping for optimal performance.
Brand Origin:
British, founded in 1902.
Brand Focus:
Sport motorcycles, iconic British design and engineering.
Speed Triple Lineage:
Evolved from earlier Triumph triples, establishing a distinct identity in the naked sportbike segment.
2002 Model Changes:
Minor updates typically include graphics, color schemes, possibly minor chassis or engine tuning refinements from previous years.
Manufacturing Location:
Hinckley, Leicestershire, United Kingdom.
Production Years Triple 955:
1994-2004 (with significant updates and displacements).
Motorcycle Press Reviews:
Generally received positive reviews for its performance, handling, and character in contemporary motorcycle press.
Awards Received:
No specific prominent awards are widely cited for this particular model year, but consistent praise for its class.
