The bike is the latest model in a line stretching back to 1994, with the Hinckley-based manufacturer describing the new version to be the most advanced and powerful yet.
Powering both bikes is a revised version of the 1,050 cc Speed Triple engine, with Triumph saying it features 150 new parts, paired to a six-speed gearbox.
The result is 148 bhp and 117 Nm of torque, while delivering 54.3 mpg and CO² emissions of 119 g/km.
Both the S and RS get a full-colour five-inch TFT information display with five selectable rider modes, cruise control and daylight running models as standard.
RS models also get improved ABS and traction control systems in an effort to improve handling. Both models are available in black and white colour schemes with red detailing, and RS versions can have a matt finish.
Triumph Motorcycles chief engineer Stuart Wood said: ‘We have made major changes to the new Speed Triple engine. The result is a motor that spins up faster and revs harder for longer with a red line now 1,000 rpm higher than the previous generation. This delivers more Triumph Triple character, crisp throttle response and the unmistakeable Triple deep rich roar to match.
‘A new freer-flowing exhaust, larger catalyst and lighter header system improves gas flow and performance in both models. The restyled high-level silencers on the Speed Triple S and lightweight sports silencers as standard on the RS bring a significant improvement to the roar of the Triple engine, making the latest model the best-sounding Speed Triple sound ever. An improved gearbox and slip assist clutch combine to improve rider comfort and help to deliver that perfect Speed Triple ride.’
Triumph has not confirmed pricing or availability for the Speed Triple just yet, but both models will sit at the top of the manufacturer’s performance bike range.