Triumph is doubling down on the middleweight segment for 2026, and it’s doing it the right way. Not with half-baked facelifts or mild ECU tweaks, but with a proper mechanical overhaul of its 660cc triple platform. The Trident 660 and Tiger Sport 660 both get a serious power bump, sharper styling, and meaningful chassis upgrades. Basically, these aren’t just refreshed. They’re properly evolved.
Let’s start with the engine, because that’s the headline. Both bikes now make 94 horsepower at 11,250 rpm, up from the previous generation by a healthy 13.8 horsepower. Peak torque lands at 50.2 pound-feet at 8,250 rpm, and Triumph says 80 percent of that torque is available from 3,000 rpm all the way to nearly 12,000 rpm. That means strong pull everywhere, whether you’re commuting, carving back roads, or riding two-up with luggage.
This power bump isn’t just tuning magic. Triumph went in deep. The single throttle body setup is gone, replaced by three individual 1.73-inch throttle bodies, one per cylinder. So apart from higher output, expect even better feel and throttle response from the updated engine. There’s also a bigger front-mounted airbox, a revised cylinder head with larger exhaust valves, and higher-lift cams. The redline jumps by 20 percent to 12,650 rpm, giving both bikes a much livelier top end. Cooling is improved too, thanks to a larger, repositioned radiator.
Translation? These triples now rev harder, breathe better, and feel more alive up top, without losing that signature low-end grunt they’re known for.
On the Trident 660, the changes push it firmly into sportier territory. It keeps its agile roadster personality but now has a higher redline and more power to boot. Triumph also gave it a more muscular look with a redesigned fuel tank, new split seats, and updated lighting. Suspension gets an upgrade as well, with a new Showa rear shock offering preload and rebound adjustment. Wet weight sits at around 430 pounds, and with a low seat height of 31.89 inches, it stays friendly for newer riders.
Tech-wise, it’s loaded. You get ride modes, cornering ABS, cornering traction control, a quickshifter, cruise control, and full connectivity through Triumph’s TFT dash. Not bad for a middleweight roadster that starts at just $9,145 USD.
The Tiger Sport 660 takes the same engine upgrades but leans into its sport-touring identity. The big news here is the larger 18.6 liter fuel tank, which means more range for longer trips. Wind protection improves thanks to new bodywork and radiator cowls, while the adjustable windscreen can be raised from 51 inches to 55 inches with one hand.
Suspension travel is longer than the Trident, with 150mm front and rear. Wet weight comes in at 465.2 pounds, which is still manageable for a high-riding sport-tourer. Seat height is 32.87 inches, with lower seat options available. Triumph also offers factory panniers and a top box, giving you over 106 liters of total storage. Pricing starts at $10,445 USD, which is pretty damn aggressive considering the spec sheet.
Judging from these bikes' spec sheets, it's clear that Triumph is no longer positioning the 660s as "entry-level" offerings in its lineup. And quite frankly, this is how middleweight bikes should evolve. Real hardware changes, real performance gains, no fluff. Triumph didn’t just chase bigger numbers. Instead, they focused on how the bike feels across the rev range, how usable the power is, and how comfortable these machines are in the real world.
Source: Triumph
