How Much Power Does the 2021 Triumph Trident 660 Make?

Horsepower and torque figures on the all-new Triumph roadster

Triumph introduced the 2021 Trident 660 as an all-new entry point into the sport standard segment. It quickly gained the liking of CW contributor Chris Northover in his first ride review for its well-balanced engine performance and impressive handling that can be enjoyed by riders of all experience, even the most seasoned. And the Trident’s relatively well-priced $8,095 MSRP makes it that much more attractive.

The Trident is powered by an all-new liquid-cooled 659cc inline-triple engine that is related to the original Daytona 675 and the current Street Triple 660 S that’s offered in foreign markets. Triumph decreased the stroke measurement from 52.3mm to 51.1mm to meet its displacement target, while fitting with 67 unique components aimed at tuning the power characteristic to be suitable for a new generation of riders.

Trident 660 dynoRobert Martin

As part of the Cycle World testing regiment, we ran the Triumph Trident 660 on our in-house Dynojet 250i, recording horsepower and torque measurements. The Trident produced a peak 72.05 hp at 10,200 rpm and a 42.85 pound-feet of torque at 6,660 rpm. What’s most impressive is the incredibly flat torque curve, where the Triumph produces more than 90 percent of max torque from around 3,500 rpm. That, in combination with the linear power delivery that pulls until its 10,250-rpm redline, makes for a superflexible and easy-to-use engine with serious entertainment.