| MODEL | TRIUMPH STREET TRIPLE S / A2 2020 |
| Year | 2020 |
| Engine Type | 4-stroke, in-line 3-cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 660 cc |
| Bore X Stroke | 76.0 x 48.5 mm |
| Compression Ratio | 12.1:1 |
| Cooling System | Liquid-cooled |
| Max Power | 70 kW / 93.8 hp @ 11250 rpm (A2 restricted: 35 kW / 46.9 hp @ 9000 rpm) |
| Max Torque | 66 Nm @ 9250 rpm (A2 restricted: 60 Nm @ 5250 rpm) |
| Ignition | — |
| Induction | Multipoint sequential electronic fuel injection with secondary air injection, electronic throttle control |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6-speed |
| Clutch | Wet, multi-plate |
| Final Drive | X-ring chain |
| CHASSIS SPECS | |
| Frame | Front: aluminium beam twin spar; rear: die-cast; twin-sided cast aluminium swingarm |
| Front Suspension | Showa 41 mm upside-down forks, 110 mm travel |
| Rear Suspension | Showa piggyback monoshock, adjustable preload, 124 mm travel |
| Front Brakes | 2 x 310 mm discs, Nissin 2-piston calipers, switchable ABS |
| Rear Brakes | 220 mm disc, Brembo single-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 810 mm |
| Wheelbase | 1410 mm |
| Ground Clearance | — |
| Dry Weight | 168 kg |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 (Pirelli Diablo Rosso III) |
| Rear Tyre | 180/55 ZR17 (Pirelli Diablo Rosso III) |
| FUEL SYSTEM | |
| Fuel Capacity | 17.4 Litres |
| Fuel Consumption | — |
| Top Speed | — |
For 2020 the S became a 660 cc A2-licence-friendly version of the triple, restricted to 35 kW but dealer-derestrictable to full power. It took the RS-style bodywork and LED headlight, and carries Showa suspension, switchable ABS and Road and Rain modes. A mid-priced everyday all-rounder.
