| General |
| Year | 2006 - 07 | 2021 |
| Make Model | Triumph Rocket III | Triumph Bonneville Speedmaster |
| Dimensions |
| Seat Height | 740 mm / 29.1 in | 705 mm / 27.8 in |
| Wheelbase | 1695 mm / 66.7 in | 1500 mm / 59.1 in |
| Height | 1165 mm / 45.9 in | 1055 mm /41.5 in |
| Length | 2500 mm / 98.4 in | 2225 mm / 87.6 in |
| Width | 970 mm / 38.2 in | 910 mm / 35.8 in |
| Weights & Capacities |
| Dry Weight (kg) | 320 | - |
| Wet Weight (kg) | 350 | 263 |
| Dry Weight | 320 kg / 704 lbs | - |
| Fuel Capacity | 24 Litres / 6.3 US gal / 5.3 Imp gal | 12 Litres / 3.2 US gal |
| Wet Weight | 350 kg / 771.6 lbs | 263 kg / 580 lbs |
| Performance |
| Top Speed | 219.4 km/h / 136.3 mph | - |
| Max Power | 103.6 kW / 140 hp @ 5750 rpm | 57.5 kW / 76.9 hp @ 6100 rpm |
| Max Torque | 200 Nm / 20.4 kgf-m / 147ft.lbf @ 2500 rpm | 106 Nm / 78.2 lb-ft @ 4000 rpm |
| Standing Start ¼ Mile | 12.2 sec | - |
| Engine |
| Displacement | 2294 cc / 140 cu in | 1198 cc / 73.1 cu in |
| Engine Detail | Four stroke, longitudinal three cylinder, DOHC, 4 valves per cylinder | Four stoke, parallel twin, 270° crank angle, SOHC, 4 valve per cylinder |
| Bore x Stroke | 101.6 x 94.3 mm | 97.6 x 80 mm |
| Compression Ratio | 8.7:1 | 10.0:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Emissions | - | EURO5 |
| Exhaust | - | Chromed stainless steel 2 into 2 twin-skin exhaust system with chromed stainless silencers |
| Fuel Consumption | 6.4 L/100 km / 15.6 km/l / 36.7 US mpg / 44.1 Imp mpg | - |
| Fuel Induction | - | Multipoint sequential electronic fuel injection |
| Ignition | Digital inductive type via electronic engine management | Digital |
| Lubrication | - | Wet sump |
| Starter | Electric | - |
| Drivetrain |
| Clutch | Wet, multi-plate | Wet, multi-plate, torque assist clutch |
| Final Drive | Shaft | Chain |
| Transmission / Drive | 5 Speed | 6-Speed |
| Chassis |
| Frame Type | Tubular steel, twin spine | Tubular steel, twin cradle frame |
| Suspension - Front | 43 mm Upside down forks | 47 mm Showa cartridge forks |
| Suspension - Rear | Chromed spring twin shocks with adjustable preload | Mono-shock RSU with linkage and preload adjustment |
| Rake | 32° | 25.3° |
| Swingarm | - | Twin sided fabrication |
| Trail | 152mm / 6.0 in | 91.4 mm / 3.6 in |
| Wheels & Brakes |
| Brakes - Front | 2 x 320mm Discs, 4 piston calipers | 2 x 310mm disc, Brembo 2-piston sliding axial calipers |
| Brakes - Rear | Single 316 mm disc, 2 piston caliper | Single 255mm disc, Nissin single piston sliding axial caliper |
| ABS | - | Standard |
| Tyres - Front | 150/80 V17 | 130/90-16 |
| Tyres - Rear | 240/50 V16 | 150/80-16 |
| Wheels - Front | 3.5 x 17, 5 spoke | Wire 32-spoke, 16 x 2.5 in |
| Wheels - Rear | 7.5 x 16, 5 spoke | Wire 32-spoke, 16 x 3.5 in |