How Much Power Does the 2023 Triumph Speed Twin 1200 Make?

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The 2023 Triumph Speed Twin 1200 is a mainstay of the British marque’s roadster lineup, the sensible yet wildly entertaining middleground between models like the less sporty T120 and rip-roaring, cafe racer–inspired Thruxton RS.

Of course, like many other models in Triumph’s lineup, the Speed Twin 1200 is powered by a variation of the 1,200cc liquid-cooled eight-valve Bonneville twin engine. When updating the Speed Twin to meet Euro 5 compliance for the 2023 model year, Triumph also gave it a boost. The inertia of the 270-degree crankshaft and updated alternator was reduced by 17 percent to improve response; higher-compression pistons, revised porting, and a new camshaft profile further improved its performance.

The 2023 Triumph Speed Twin 1200 horsepower and torque figures recorded on the Cycle World dyno. (Robert Martin Jr./)

In anticipation of our upcoming comparison test of similar retro-modern models, we put the Speed Twin 1200 to the test on the Cycle World dyno to record horsepower and torque measurements. The Twin ripped 92.16 hp at 7,190 rpm and an impressive 77.75 lb.-ft. of torque at 4,180 rpm. For reference, that’s a very slight increase in horsepower compared to the last iteration of the Speed Twin we tested, which produced 91.4 hp. It’s also a slight decrease in torque to the 79 lb.-ft. of torque that the last Speed Twin recorded.

Still, the Speed Twin packs impressive performance and now does so while meeting ever-tightening emissions standards. Now for real-world fun.

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