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Engine development update

8th September 2017

Triumph's Moto2 prototype motorbike riding around race circuit during engine development testing

September 8, 2017


A major step in Triumph’s Moto2TM engine development program came last week with the second track test at MotorLand Aragón. Following on from the extensive factory test program, Julián Simón, 2009 125cc World Champion, Moto2TM runner-up and experienced Moto2TM test rider, put the Triumph engine development prototype through its paces.

Coming midway through the engine development program, this successful track shakedown test provided essential data input into the performance and durability evaluation. Initial feedback from the test showed that the development program is progressing positively and that we are well on schedule for the handover in June 2018 of the first batch of Moto2TM race engines.

In regards to power, torque and durability, we are ahead of our expectations and during the track session saw excellent results, with the motorcycle delivering good, consistent and competitive lap times.

Steve Sargent, Chief Product Officer for Triumph Motorcycles, said: “At this stage of the development program we are in a good place. We are very pleased with the pace that Julián is showing with the latest engine and his feedback has been very positive. We have confidence that we will deliver an engine that the teams will enjoy racing with and a spectacle and sound that will excite the fans.”

Julián Simón, 2009 125cc World Champion, Moto2TM runner-up and experienced Moto2TM test rider, said: “I am really happy to be here in Aragón testing the development of the 2019 Moto2 engines with Triumph. I can see there has been a big improvement with the latest engine, giving a great feeling. There’s a lot of power and the gearing is fantastic. And for the sound, this is also fantastic. To me, it’s fun.”

This testing update follows on from the announcement of Triumph Motorcycles as the exclusive engine supplier to the FIM Moto2TM World Championship from the 2019 season onwards.

With a three-year contract with Dorna – the commercial rights holder of MotoGPTM – Triumph is set to supply a dedicated, race-tuned 765cc Triumph Triple engine based on the all-new 2017 Triumph Street Triple powerplant.

The new engine is a significant evolution of the race-winning Daytona 675R engine that powered supersport wins at the Isle of Man TT, Daytona 200 and British Supersport Championships in 2014 and 2015.

Based on the highest specification 765cc Street Triple RS engine, it was developed for Moto2TM with the following modifications:

  • Modified cylinder head with revised inlet and exhaust ports for optimized fuel flow
  • Titanium valves and stiffer valve springs for increased rpms
  • Low output race alternator kit for reduced inertia
  • Taller 1st gear ratio
  • Race developed slipper clutch (tunable)
  • Race-specific ECU developed with Magneti Marelli
  • Revised engine covers for reduced width
  • Different sump to allow for improved header run


The engine

Based on the new 2017 Street Triple engine, the Triumph Moto2TM 765cc triple engine was developed and tuned for a major step up in power and torque.

In ‘road’ setup the new 765cc engine delivers the highest-ever level of performance for a Street Triple, delivering 121 horsepower at 11,700 rpm and 57 foot-pounds of torque at 10,800 rpm.

It has more than 80 new parts compared to the previous generation engine, including an increase to the bore and stroke. All-new engine components include:

  • New crank
  • New pistons
  • New connecting rods and balancer shaft
  • Nikasil plated aluminum barrels
  • Revised gearbox


The race-specification Triumph 765cc Moto2TM engine was developed further to allow the engine to breathe more freely and rev harder than the production motorcycle, increasing overall performance. Other changes were made specifically to adapt the engine for race use. 



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