Motorcycle Segment:
Sport-touring motorcycle, offering a blend of performance and long-distance comfort.
Key Competitors 1999:
Honda VFR800, Yamaha YZF1000R Thunderace, Kawasaki ZX-9R (though more pure sport), BMW R1100RS.
Engine Layout Advantage:
The inline triple-cylinder engine provided a unique torque curve and character, distinguishing it from V-twins and fours.
Chassis Design:
Features Triumph's distinctive perimeter frame design, offering good rigidity and handling characteristics for its class.
Model Differentiation St Rs:
The 'RS' typically signified a slightly sportier setup or specification compared to the 'ST' sport-tourer, potentially with different suspension settings or bodywork details. However, for 1999, the differentiation might be subtle compared to later generations.
Engine Systems:
Engine mechanicals, fuel injection, ignition, cooling, lubrication, exhaust.
Transmission Systems:
Clutch operation, gearbox disassembly and reassembly, final drive (chain and sprockets).
Chassis And Suspension:
Frame inspection, front fork service (Triumph's Speed-Triple derived forks often fitted initially), rear shock absorber adjustment and servicing, steering head bearings.
Braking Systems:
Front and rear brake caliper service, master cylinders, brake line replacement, ABS system (if equipped on specific variants).
Electrical Systems:
Wiring diagrams, starter motor, charging system (alternator, regulator/rectifier), battery maintenance, lighting, instrumentation, ECU diagnostics (basic).
Bodywork And Trim:
Fairing removal and installation, seat, fuel tank, fenders.
Maintenance Procedures:
Oil changes, filter replacement, spark plug service, air filter cleaning/replacement, chain adjustment, brake fluid flush, coolant flush, valve clearance checks.
Troubleshooting Guides:
Common starting issues, running problems, electrical faults with diagnostic flowcharts.
Repair Procedures:
Detailed step-by-step instructions for major component removal, overhaul, and reinstallation (e.g., engine top-end rebuild, fork rebuild, clutch replacement).
Technical Data And Specifications:
Torque specifications for all fasteners, engine timing, electrical component resistance values, fluid capacities.
Diagnostic Capabilities:
Covers basic diagnostic procedures for electrical and mechanical systems. May include symptom-based troubleshooting, but advanced electronic diagnostic tool procedures are unlikely for this era.
Rebuild Level:
Detailed enough for complete engine and component overhauls, including internal engine work like piston and valve replacement.
Wiring Diagrams Detail:
Comprehensive, usually color-coded diagrams for all electrical circuits, including component identification.
Engine Type:
Liquid-cooled, 4-stroke, DOHC, inline three-cylinder
Displacement:
955 cc (58.0 cu in)
Bore X Stroke:
74.0 mm x 74.0 mm (approximate, check specific variant if available)
Horsepower Crank:
Approximately 107-110 hp (at crank) @ 9,000 rpm (typical for this engine generation)
Torque Crank:
Approximately 68-70 lb-ft (at crank) @ 6,500 rpm (typical)
Fuel Delivery:
Multipoint Sequential Fuel Injection (EFI) with electronic ignition
Fuel Type:
Unleaded gasoline, 95 RON (Octane rating)
Oil Type Specification:
API SG/SH/SJ, JASO MA rated motorcycle oil, SAE 10W-40 or 15W-50 depending on ambient temperature (refer to manual for precise chart)
Oil Capacity With Filter:
Approximately 3.5 - 3.8 Liters (check manual for exact fill)
Coolant Type:
Ethylene glycol based, permanent type antifreeze (e.g., Triumph recommended coolant or equivalent)
Coolant Capacity:
Approximately 2.5 Liters (check manual for exact fill)
Transmission Type:
Constant mesh, 6-speed sequential
Clutch Type:
Wet, multi-plate, cable-actuated
Optional Gear Ratios:
Not typically applicable for this model year as an option; internal ratios are fixed.
Final Drive:
Chain drive, O-ring sealed type.
Transmission Oil Type:
Motorcycle transmission oil (e.g., SAE 75W-90 GL-4 or GL-5, check manual for specific recommendation)
Length:
Approx. 2130 mm (87.8 in) - check manual for precise measurement
Width:
Approx. 750 mm (29.5 in) - handlebars - check manual
Height:
Approx. 1230 mm (48.4 in) - seat height varies - check manual
Wheelbase:
Approx. 1450 mm (57.1 in) - check manual
Dry Weight:
Approx. 206 kg (454 lbs) - dry, without fluids
Wet Weight:
Approx. 225 kg (496 lbs) - wet, with all fluids and ready to ride (estimate)
Fuel Capacity:
20 Liters (5.3 US gal) - check manual
Safety Ratings Era:
Motorcycles of this era did not have standardized crash test ratings like cars. Safety was assessed through design and components.
Braking System Features:
Dual disc front brakes (often 3-piston calipers), single disc rear brake. ABS was available on some variants or as an option, but not standard on all 1999 models.
Suspension Role In Safety:
Well-tuned suspension contributes to stable handling and rider control, enhancing active safety.
Frame Integrity:
Triumph's perimeter frame design is known for its strength and rigidity, contributing to overall chassis stability.
Lighting System:
Dual headlights for improved night visibility (typical for sport-touring).
Infotainment Systems:
None (standard for 1999 motorcycle technology). Focus is on functional instrumentation.
Driver Assistance Features:
ABS (Anti-lock Braking System) was an optional feature for some 1999 models, but not standard. No other electronic driver assistance systems.
Connectivity Features:
None.
Instrument Cluster Features:
Analog speedometer and tachometer, digital odometer, trip meter, fuel gauge, coolant temperature gauge, indicator lights for turn signals, high beam, oil pressure, neutral, etc. (refer to manual for specific layout).
Oil And Filter Change Interval:
Every 4,000-5,000 miles or 6-12 months, whichever comes first (verify with manual).
Valve Clearance Check Interval:
Typically around 12,000 miles or 24,000 miles (verify with manual for initial check and subsequent intervals).
Spark Plug Replacement Interval:
Around 6,000-8,000 miles or as specified for plug type.
Chain And Sprocket Replacement:
Variable, based on wear; typically inspected every service and replaced as needed (e.g., 15,000-30,000 miles).
Brake Fluid Type:
DOT 4 (refer to manual for specific approval, typically a high-performance DOT 4 is recommended for consistent braking).
Fork Oil Type And Level:
Specific fork oil viscosity (e.g., Showa SS-01 or equivalent) and precise oil level measured from the top of the stanchion when fully compressed (refer to manual for exact level and oil quantity).
Fuel Pump Reliability:
Early models could be susceptible to fuel pump issues. Regular maintenance and using clean fuel is important.
Regulator Rectifier Common Failure:
Like many bikes of this era, the regulator/rectifier could be a failure point, leading to charging system problems. Upgraded units are available.
Cam Chain Tensioner Wear:
The automatic cam chain tensioner can wear over time, leading to rattling noises from the engine, particularly on startup.
Bodywork Fitment:
Some owners have reported minor fitment issues with fairing panels; attention to detail during reassembly is key.
Triumph Legacy:
Triumph Motorcycles, a revival of the historic British marque, established its modern era with models like the Trident and Daytona triples in the 1990s, aiming to combine classic British character with modern engineering.
Sprint Heritage:
The Sprint 955cc series evolved from earlier models, including the T509 Daytona and Sprint models, representing Triumph's effort to compete in the sport-touring market with its unique triple engine.
T595 Vs 955I:
The 1999 model is part of the transition from the T595 designation to the '955i' models, which saw internal engine updates and chassis refinements in subsequent years.
Manufacturing Location:
Hinckley, Leicestershire, England
Production Period Focus:
The first generation of the 955cc triple engine and Sprint platform ran from the mid-1990s through the early 2000s, with significant updates occurring around 2002.
