Triumph Trident 660 (2025) – Technical Review

A great chassis and build quality plus an attractive price and a very easy-going character were the hallmarks of the Triumph Trident 660 when first released to the world in 2021. Four years later and ready for 2025 the Hinckley crew have upgraded the bike with stacks of extra tech including a new six-axis IMU to enable cornering traction control and cornering ABS. Plus a quickshifter, cruise control and connectivity module for phone-operated nav are all now fitted as standard. The Trident’s suspension gets updated, and there’s some new colours too. And all for the same price. Yes, you heard that right, the existing bike is already popular in the sales charts, and it just got even better but for no increase in £££, is there a catch?

An A2 restrictor kit is available for younger and newer riders who can have their Trident 660 restricted to comply with A2-licening laws but the model can then be derestricted to allow full power as and when the owner progresses to a full A licence.

Pros & Cons

2025 Triumph Trident 660 - Price

How much is the 2025 Triumph Trident 660? £7895 otr. Which is interesting because even though the 2025 model has been rewarded with a generous helping of spec upgrades, the price (which may end up being an introductory figure) is identical to the outgoing version. Has Triumph struck a marketing home-run, or is this an introductory offer that’ll soon be upscaled by Spring 2025? Only time will tell but this is a highly price sensitive segment in the market and a swing of a few £££ each way can make a difference, and starting with an ‘8’ could soon impact on sales. Even running costs have been considered here with a first major service not until 10,000 miles.

The new bike will be available in UK dealerships from December 2024 with a selection of new graphics and colours. And to give them their full and correct names they are: Cosmic Yellow, Cobalt Blue, Diablo Red, and Jet Black.

2025 Triumph Trident 660 - Engine & Performance

Ask any rider who has owned a three-cylinder configured engine about its character and they’ll praise the spriteliness and eager performance. The Trident certainly has the specification to tick that box too with a claimed 81bhp peak performance and overall 190kg weight figure combination. The flexibility from low in the rev range right through to the red line is part and parcel of what makes the Trident a reel hoot to ride, probably because its genetics can be traced back to the 675cc Street Triple engine. It’s sure to be a stand-out element brought over from the previous model especially given that the fundamentals haven’t been amended. Performance therefore remains at a peak of 81bhp @ 10,250rpm, while peak torque is 47.2lb-ft @ 6,250rpm.

The Trident has a near-perfect throttle connection meaning there’s little-to-no lag between twisting the throttle backwards and the power being delivered. It’s smooth, reassuring and friendly to ride but there’s still plenty of performance for the more experienced rider.

One of the main headlines to differentiate between the new and old is the introduction of a six-axis IMU (Inertial Measurement Unit – an electronic device that measures, monitors and adjusts the bike’s movements) to assist with such rider safety as cornering ABS and Traction Control.

2025 Triumph Trident 660 - Handling & Suspension (inc. Weight)

Just like the outgoing model, and despite that attractive price, Triumph hasn’t scrimped on the quality of its components fitted to the Trident’s tubular steel frame with upgraded-for-2025 Showa suspension as a focus for rider comfort and an improved ride. Not that it was particularly poor in the first place, though rider size and road conditions are factors just like all bikes. Again, ask anyone who’s ridden the 2021-on model and they’ll universally praise its ride quality.

A low weight figure of 190kg when fuelled up and ready-to-ride is enticing as is the narrow chassis making it easier to hop on and control the bike at low speed. The ease of shifting it around in the car park or garage can be taken into consideration too. A shorter wheelbase also helps with direction changes while riding. The Michelin Road 5 rubber gets carried over and was deemed as being very well suited to the bike when our duo of experienced testers rode the last model.

The non-adjustable upside-down forks may well have had a nip and a tuck with the introduction of Showa’s SFF-BF ‘big piston’ damping for, and I quote, “even more comfort and control”, but the previous generation didn’t suffer at the front end so we can only hope for an even smoother glide with this upgrade. At the rear, the Showa unit remains untouched and is adjustable for preload though only with a C-spanner. It’ll be worth fiddling with those settings if you’re taking on bumpy roads or carrying a pillion or luggage.

Twin disc 310mm brakes on the front, accompanied by a single 255mm disc at the rear, are accomplished at slowing the bike with their Nissin calipers. They’re connected to a span-adjustable lever and have an ABS in support. On the outgoing model the brakes were praised for the type of rider that’ll be using them.

2025 Triumph Trident 660 - Comfort & Economy

The small and sleek design of the Trident and its accessibility for riders of all shapes, sizes and experience has made it an uber popular bike resulting in sales chart success for Triumph. Not only that but its handling, rider aids and price tag were all big ticks for the model. Some owners have commented online about the lack of seat comfort or even mentioning the seat material not being up to scratch but overall, the riding position, narrow chassis and relatively low seat height are also part of the attraction. With the upgraded Showa suspension elements, the ride quality is likely to be enhanced too. That said, the chassis has always been sportier than others in the category, it’s nicely poised and slightly canted forwards but not enough to force too much weight on your wrists.

The 14-litre tank should offer around 55mpg which will only transport you around 135-145 miles per fill up.

2025 Triumph Trident 660 - Equipment

As I noted earlier, one of the key upgrades is the inclusion of the six-axis IMU and it’s associated cornering ABS and traction control. The standard fit up-and-down quickshifter and cruise control add to the suite of impressive electronics on this sub-£8k naked, one that can boast plenty of rider aids versus others in this class. Also now appearing as standard is cruise control

Two riding modes from the outgoing Trident 660 of Road and Rain have now been joined by a third, Sport, which increases the responsiveness of the throttle. The bike’s LED headlight and self-cancelling indicators are also modern day nice-to-haves.

Notable too is the Triumph’s 10,000-mile service intervals which make the Trident 660 cheaper to run than some of the parallel twin rivals, though they are likely to be more frugal.

2025 Triumph Trident 660 - Rivals

Some might say the Trident 660’s main rivals come from its own stable in the shape of the Tiger Sport 660, Street Triple 765 R or the Speed 400, all of which have a great case for shaving sales from their own family.

Otherwise, the A2-licence friendly naked category is overwhelmingly popular with almost every manufacturer featuring an option. BSA’s Goldstar and Royal Enfield’s Guerilla 450 or even Himalayan can be considered as worthy entries, then there’s Honda’s three-strong 500cc parallel twin range. KTM, CFMoto and Husqvarna all have the same owner and their offerings in the shape of the 390 DUKE, 401 Vitpilen and 450NK respectively are similar and worthy of note, though a little down in performance that the Triumph. But the nearest to the Trident are these three:

Honda CB750 Hornet | Price: £7299

Read more

Power/Torque

90.5bhp / 55.3lb-ft

Weight

190kg

Yamaha MT-07 | Price: £7516

Read more

Power/Torque

72.4bhp / 49.4lb-ft

Weight

184kg

Suzuki GSX-8S | Price: £7999

Read more

Power/Torque

81.8bhp / 57.5lb-ft

Weight

202kg

2025 Triumph Trident 660 - Verdict

Here’s where the verdict will be once we’ve ridden the new Trident 660.

If you’d like to chat about this article or anything else biking related, join us and thousands of other riders at the Bennetts BikeSocial Facebook page.

Do you own the current Trident? Tell us what it’s like, or ask us questions about it at bikeclub.bennetts.co.uk.

2025 Triumph Trident 660 - Technical Specification

What is MCIA Secured?

MCIA Secured gives bike buyers the chance to see just how much work a manufacturer has put into making their new investment as resistant to theft as possible.

As we all know, the more security you use, the less chance there is of your bike being stolen. In fact, based on research by Bennetts, using a disc lock makes your machine three times less likely to be stolen, while heavy duty kit can make it less likely to be stolen than a car. For reviews of the best security products, click here.

MCIA Secured gives motorcycles a rating out of five stars (three stars for bikes of 125cc or less), based on the following being fitted to a new bike as standard:

• A steering lock that meets the UNECE 62 standard

• An ignition immobiliser system

• A vehicle marking system

• An alarm system

• A vehicle tracking system with subscription

The higher the star rating, the better the security, so always ask your dealer what rating your bike has and compare it to other machines on your shortlist.