2019 Triumph Bonneville T120 Diamond


For 2019 Triumph celebrate 60 years of the iconic Bonneville Twin, which first broke cover in 1959 and continues to hold a cult status to this day. Alongside the T120 Ace limited edition, Triumph have also announced the T120 Diamond, with just 900 to be available around the world.  Pricing is yet to be officially confirmed but Triumph Australia have indicated that like the Bonneville T120 Ace, the T120 Diamond limited edition should be around 18-19k, +ORC.

The T120 Diamond features a unique colour scheme and heavy use of chrome with the latest generation powerplant and electronic safety systems.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond

2019 Triumph Bonneville T120 Diamond features

  • Snowdonia White and Aluminium Silver ‘union flag’ tank scheme
  • Bonneville T120 ‘Diamond’ side panel branding
  • Chrome 4 bar Triumph tank badges
  • Chrome engine covers and badges
  • Chrome chain guard
  • Limited run of 900 worldwide

Each T120 Diamond will come with a numbered certificate, signed by Nick Bloor, Triumph CEO  and is based on the Bonneville T120, featuring rider-focused technology for control, safety and confidence, with the 1200cc High Torque twin Bonneville engine.

A dedicated chassis and suspension set-up, offers relaxed and refined riding alone or with a pillion, while styling is inspired by the legendary ’59 Bonneville.

Born in 1959 and named after the iconic Bonneville Salt Flats, the original T120 set a benchmark for style, capability and handling, and today’s generation aims to take the legend to an even higher standard.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond

1200cc High Torque engine

The character of the Bonneville T120 comes to life through the 1200cc high torque eight-valve, parallel Bonneville twin engine. Built specifically for the modern classic riding style, it produces a peak torque figure of 105Nm at a low 3100 rpm – 54% more than the previous generation powerplant.

With the accuracy and instant throttle response of Triumph’s next generation ride-by-wire fuel-injection and engine management system, the six-speed 1200cc Bonneville engine is engineered with a charismatic tone and 270° firing interval for characterful, linear power delivery.

The engine profile has been crafted to incorporate key heritage styling cues from the legendary ’60s Bonneville bikes, sensitively incorporating contemporary components to maintain that iconic engine silhouette.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond – 1200 High Output powerplant

Behind the 1200 engine’s exterior sits a liquid-cooling system, carefully integrated to minimise its visual impact while achieving cleaner emissions and enhancing fuel efficiency – 13% better than the previous generation. This, combined with a new extended service interval of 10,000 miles (16,000km) dramatically reduces the overall cost of ownership.

Finally, elegant peashooter style exhausts follow a clean ‘straight line run’ achieved through a twin skin design that covers the pipe run through the cat box and out again. It delivers the true sound of a British twin, with a deep and rich exhaust note that truly matches the T120 character, tuned to a level you would want and expect.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond

Modern Bonneville capability

The Bonneville T120 Diamond Edition shares the T120’s advanced standard of capability, with a wealth of rider-focused technology to deliver control, safety and enhanced rider confidence – integrated without compromise to maintain the authentic Bonneville style and character.

Triumph’s variable anti-lock braking system brings a new level of safety and control to the Bonneville, alongside ride-by-wire for enhanced throttle responsiveness, safety, feel and fuel economy.

Traction control takes advantage of the ride-by-wire system, and offers increased and optimised control, alongside two riding modes which are linked to the ride-by-wire system, with ‘Road’ and ‘Rain’ providing the rider with greater control characteristics for different situations.

A torque assist clutch also assists in bringing a light touch and feel to the clutch to make it easy to ride, and ride longer, while a DRL headlight incorporates the latest in daytime running lights, delivering a distinctive light pattern and enhanced power efficiency for long term durability.

LED rear lights are also features, and built into the classically inspired tail set-up, bringing a distinctive rear light pattern and power efficiency, with an integrated number plate light.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond – LED rear lights

High specification factory fitted heated grips, with a three-mode settings also ensure comfort in cool weather, while a underseat USB socket is provided so riders can charge up their essential devices on the run.

Other standard features include a engine immobiliser with transponder integrated into the T120 key, stylish twin clocks packed with features apart from the speedo and rev counter, with eye catching 3D dial faces, and cleverly incorporating a digital menu system.

Additionally riders can add accessories which would also then be accessed via the instrumentation display, including cruise control, and switchgear provides simple fingertip controls for easy access to the key features on the dash.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond

Relaxed and refined

The Bonneville T120 features a chassis and suspension set-up developed for relaxed and refined riding every day, all day, alone or with a pillion. Combining Triumph’s ride dynamic of neutrality, agility and stability with comfortable seat and suspension travel for an engaging, yet easy-going ride.

With its relaxed riding position, heated grips as standard, centre stand and passenger grab rail, the T120 Diamond Edition is fully equipped for maximum comfort and real world practicality.

Triumph Bonneville T Diamond Edition
2019 Triumph Bonneville T120 Diamond
Bonneville T120 Diamond Edition
Engine Type Liquid cooled, 8 valve, SOHC, 270° crank angle parallel twin
Capacity 1200 cc
Bore/Stroke 97.6 x 80 mm
Compression Ratio 10.0:1
Maximum Power 80 PS / 79 BHP (59 kW) @ 6,550 rpm
Maximum Torque 105 Nm @ 3,100 rpm
Fuel system Multipoint sequential electronic fuel injection
Exhaust Chrome 2 into 2 exhaust system with twin chrome silencers
Final drive X-ring chain
Clutch Wet, multi-plate assist clutch, cable operated
Gearbox 6-speed
Frame Tubular steel cradle
Swingarm Twin-sided, tubular steel
Front Wheel 32-spoke 18 x 2.75in
Rear Wheel 32-spoke 17 x 4.25in
Front Tyre 100/90-18
Rear Tyre 150/70 R17
Front Suspension KYB 41mm cartridge forks, 120mm travel
Rear Suspension KYB twin shocks with adjustable preload, 120mm rear wheel travel
Front Brake Twin 310mm discs, Nissin 2-piston floating calipers, ABS
Rear Brake Single 255mm disc, Nissin 2-piston floating caliper, ABS
Length 2,170 mm
Width (Handlebars) 785 mm
Height Without Mirrors 1,125 mm
Seat Height 785 mm
Wheelbase 1,445 mm
Rake 25.5 º
Trail 105.2 mm
Dry Weight 224 Kg
Fuel Tank Capacity 15 L
Instruments LCD multi-functional instrument pack with analogue speedometer, analogue tachometer, gear position indicator, fuel gauge, range to empty indication, service indicator, clock, trip computer, scroll and mode buttons on handlebars, heated grip status, fuel consumption display, traction control status and throttle mode display.
Fuel Consumption 4.5 l/100km (63 MPG)
CO2 Emissions 103.0 g/km

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