Bike reviews

It’s back! Triumph revive the mighty Rocket 3 with 2458cc engine!

triumph Rocket 3

Triumph has revived its monster Rocket 3 power cruiser with two all-new, 2458cc, versions which will go on sale by the end of the year.


Having announced a premium new Rocket 3 TFC (Triumph Factory Custom) bike back in May, the announcement of the ‘standard’ models is no major surprise, however Triumph have not only introduced one new Rocket 3 but two, the R and the GT for 2020.


The Rocket 3 R is a the muscular, streetfighter styled variant while the GT takes a step towards the traditional cruiser style with a lower seat height, adjustable feet forward footpegs and a slightly different handlebar position.


At the heart of the new Rocket 3 (as opposed to the old Rocket III) is a 2458cc three cylinder motor (the largest mass production motorcycle engine in the world), pumping out 165bhp (the highest output of any production Triumph motorcycle) and 221Nm of torque (more than any other mass produced motorbike).

While based upon the old, 2.3 litre Rocket III powerplant, the new engine features new crankcases, balance shafts and a dry sump lubrication system, which contributes to an 18kg weight saving in the engine alone. The old Rocket III’s clunky five speed ‘box has been swapped for a helically cut six-speeder which promises to offer a better action and the strength to cope with the massive torque and power from the engine.


The entire motorcycle, while still no lightweight, weighs 291kg (294kg for the GT). That’s 40kg less than the old Rocket.


Much of that also goes down to the all-new aluminium frame on the latest generation Rockets. Showa provide the suspension, with high spec 47mm upside down forks up front and a fully-adjustable rear monoshock with a piggyback reservoir. Brembo Stylema calipers grip 320mm discs to provide the stopping power, with a new design said to increase air flow around the brakes for excellent cooling performance. British company Avon has provided the tyres for the new Rocket 3s, with the rear running a chunky 240 section version of their Cobra Chrome rubber, which has been developed especially for the big Triumph.


Although not a big selling sector, the lucrative power cruiser market has a number of breathtaking competitors in it, including Ducati’s Diavel range and a number of big cc models from Harley-Davidson and Indian. No prices have been announced yet for the new Rocket 3s, however we’re expecting them to be the thick end of £20,000 when they go on sale in December. That’s a big wedge of money, but the spec sheet of the new models suggest that the new Triumph will be able to make its mark against its high-end rivals.


Triumph has retained the Rocket’s trademark twin bug eyed headlights, albeit updated with LED rings, and the hydroformed triple exhaust headers look like a real work of art which, according to Triumph, will contribute to a signature three cylinder growl.

Electronic aids and riding modes are almost too many to mention, but include IMU controlled cornering ABS, traction control, four riding modes, hill start, cruise control and keyless ignition. There are also new, second generation, TFT instruments, and USB charging sockets on both models.

The GT version features heated handlebar grips (an optional extra on the R) while the options list includes the Triumph Shift Assist system for clutchless gear changes, sat-nav, tyre pressure monitors and an integrated GoPro control system.


With hidden pillion pegs and a removable pillion seat, the Rocket 3 has been designed to look good as a solo cruiser or two-up tourer and there are over 50 official accessories which includes 20 litre panniers, tank bag, tail pack and a range of optional handlebars and seats.


Full specifications

Engine Type Inline three-cylinder, water-cooled, DOHC
Capacity 2,458cc
Bore/Stroke 110.2 mm x 85.9 mm
Maximum Power 165 bhp @ 6,000rpm
Maximum Torque 221Nm @ 4,000rpm
Fuel system Ride-by-wire, fuel injected
Exhaust Stainless 3-into-1 headers with 3 exit silencer
Final drive Shaft, bevel box
Clutch Hydraulic, torque-assist
Gearbox Six speed
Frame Full aluminium frame
Instruments TFT multi-functional instrument pack with digital speedometer, trip computer, digital tachometer, gear position indicator, fuel gauge, service indicator, ambient temperature, clock and rider modes (Rain/Road/Sport/Rider-configurable) –
Triumph TFT Connectivity System can be added with accessory fitted Bluetooth module
Swingarm Single-sided, cast aluminium
Front Wheel 17 x 3.5in cast aluminium
Rear Wheel 16 x 7.5in cast aluminium
Front Tyre 150/80 R17 V
Rear Tyre 240/50 R16 V
Front Suspension Showa 47mm upside-down 1+1 cartridge front forks, compression and rebound adjuster. 120mm travel
Rear Suspension Fully adjustable Showa piggyback reservoir RSU with remote hydraulic preload adjuster, 107mm rear wheel travel.
Front Brake Dual 320mm discs, Brembo M4.30 Stylema® 4-piston radial monobloc calipers,
Cornering ABS
Rear Brake Single 300mm disc, Brembo M4.32 4-piston monobloc caliper, Cornering ABS
Seat Height 773mm 750mm
Rake 27.9º
Trail 134.9 mm
Dry Weight 291 kg 294 kg
Fuel Tank Capacity 18 litres


Bike News, Bike Reviews, Inside Bikes

You also may be
interested in...

Motorbike Reviews

Reviewed: Honda MSX 125 Grom

Not only has Honda’s MSX 125 been given some performance updates for 2022, but it’s also officially adopted the Grom name too. So why are these bikes so popular, and just how good is the new model?

Read more Bike Reviews

Keep up to date with our news & blogs

Bike News

Kawasaki commits to electric future

Kawasaki has become the first mainstream motorcycle manufacturer to fully commit to an electric future, announcing that they will introduce 10 hybrid or fully-electric vehicles by 2025.

Read more Bike News
Bike News

Meet Triumph’s middleweight adventure machine: the Tiger Sport 660

Triumph’s new Tiger Sport 660 looks set to be a serious contender in the middleweight adventure segment.

Read more Bike News
Bike News

Multistrada V2 gives Ducati more spec in the middleweight adventure battle

Ducati has updated its popular Multistrada 950 for 2022, with more spec, less weight and a new name – the Multistrada V2.

Read more Bike News

Have some questions? Check out our tips & guides pages for some great information

Motorbike Reviews

Reviewed: Honda MSX 125 Grom

Not only has Honda’s MSX 125 been given some performance updates for 2022, but it’s also officially adopted the Grom name too. So why are these bikes so popular, and just how good is the new model?

Read more Bike Reviews
Motorbike Reviews

Reviewed: Harley-Davidson Street Bob

See a bright orange Harley-Davidson and you instantly think of XR750s flying sideways round a dirt track oval.

Read more Bike Reviews
Motorbike Reviews

Reviewed: Honda CRF1100L Africa Twin Adventure Sports

Honda’s Africa Twin range has seen quite a few updates over the years. But are they enough to keep it at the top of the adventure segment?

Read more Bike Reviews