Triumph Trident 660 (2021) vs Ducati ST2 (1997) vs Vespa GTS 310 (2025)
Comparison technical specifications
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| Make: | Triumph | Ducati | Vespa |
| Model: | Trident 660 | ST2 | GTS 310 |
| Years: | 2021 | 1997 | 2025 |
| Engine: | Four stroke, transverse three cylinder, DOHC, 4 valves per cylinder | Four stroke, 90° “L” twin cylinder, SOHC, desmodromic 2 valve per cylinder, belt driven | 1-cylinder, 4-stroke, 4-valve, HPE |
| Capacity: | 660 cc / 40.2 cu-in | 944 cc / 57.6 cu-in | 310 cc / |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled |
| Induction: | Multipoint sequential electronic fuel injection with electronic throttle control | Marelli electronic fuel injection, 45mm throttle body | Electronic fuel injection |
| Starting: | Electric | Electric | Electric |
| Max Power: | 80 hp / 60 kW @ 10250 rpm | 61 kW / 83 hp @ 8500 rpm | 18.4 kW / 25 hp @ 6500 rpm |
| Max Torque: | 64 Nm / 47 lb-ft @ 6250 rpm | 84 Nm / 8.5 kgf-m / 62ft-lb @ 6500 rpm | 28.9 Nm / 21.3 lb-ft @ 5250 rpm |
| Clutch: | Wet, multi-plate, slip and assist | Dry, multiplate | Automatic centrifugal dry clutch |
| Transmission: | 6 Speed | 6 Speed | Automatic CVT |
| Final Drive: | X-ring chain | Chain | Belt |
| Frame: | Tubular steel perimeter frame, twin-sided, fabricated steel Swingarm | Steel tube trellis | Self-supporting body made of sheet steel components |
| Front Suspension: | 41mm Showa upside down separate function forks (SFF) | Showa 43mm upside-down fully adjustable fork | Trailed single-sided short swingarm with anti-dive system |
| Rear Suspension: | Showa monoshock RSU, with preload adjustment | Progressive linkage with fully adjustable Showa GD082 monoshock with piggy back aluminum swing arm | Drivetrain swingarm, two hydraulic struts; Spring preload adjustable |
| Front Brakes: | 2x 310mm discs Nissin 2-piston calipers | 2 x 320 mm Discs, 4 piston calipers | Single 220 mm disc, hydraulic |
| Rear Brakes: | Single 255mm disc Nissin single-piston sliding caliper | Single 245 mm disc, 2 piston caliper | Single 220 mm disc, hydraulic |
| Front Tyre: | 120/70 - R17 | 120/70 - ZR17 | 120/70 - 12M/C 51P, TL |
| Rear Tyre: | 180/55 - R17 | 170/60 - ZR17 | 130/70 - 12M/C 51P, TL |
| Dimensions: | Length 2020 mm / 79.5 in Width 795 mm / 31.3 in (incl Handlebars) Height 1089 mm / 42.9 in (excl Mirrors) | Length: 2070 mm / 81.5 in Width: 910 mm / 35.8 in Height: 1320 mm / 52.0 in | Length: 1980 mm / 78.0 in Width: 765 mm / 30.1 in Height: 1190 mm / 46.9 in (without mirrors) |
| Wheelbase: | 1401 mm mm / 55.2 in | 1430 mm / 56.3 in | 1380 mm / 54.3 in |
| Seat Height: | 805 mm / 31.7 in | 820 mm / 32.3 in | 790 mm / 31.1 in |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 22.7 L / 6.0 US gal / 5.0 Imp gal | 8.5 Litres / 2.2 US gal |