A CARB filing uncovered by Visordown has revealed that the 2011 Triumph Speed Triple will use an engine that retains the current 1050cc capacity, but increased pollutant levels suggest the engine will operate in a higher state of tune. Weight should also decrease considerably. We previously reported that the new Speed Triple could adopt a 1200cc three-cylinder engine, as is allegedly used by the rumored Triumph Tiger 1200.
These California Air Resources Board filings, which also gave us the Triumph Tiger 800’s name, can be a little difficult to decipher, but actually contain a lot of data. The relevant data points on any CARB document are the model year and name, engine family designation, engine capacity, the Estimated Inertial Mass, transmission arrangement and of course details of pollution levels emitted by the motorcycle.
In the case of this new Speed Triple, the name is obvious, we’ve already told you about the engine capacity, the engine adopts a new family designation, it’s still got a six-speed manual (duh), the EIM is down by 30kg and pollutant levels have increased in some cases by double versus the outgoing model.
CARB uses a complicated Estimated Inertial Mass algorithm to list a vehicle’s weight. What that means is that the inertia of rotating parts like the wheels and crank is added to vehicles’s overall mass. Think back to spinning a bicycle wheel in your hands in elementary school science, spinning objects have more inertia than non-spinning ones. So don’t worry, the new Speed Triple doesn’t weigh 300kg. Like the Tiger 800, the easiest way to get an idea of a weight figure we’d understand is to compare the EIM of the Speed Triple to other Triumphs. The Triumph Daytona 675 has an EIM of 270kg and actually weighs 185kg/407lbs (wet); the current Speed Triple has an EIM of 330kg and actually weighs 217kg/477lbs (wet). The EIM of the new Speed Triple splits that of the two other bikes, splitting the actual weights suggests the new bike should weigh around 200kg/440lbs (wet), quite a considerable decrease.
Looking at pollutant levels, for 2011 hydrocarbon plus nitrous oxide emissions are up from .3 to .6g/km and carbon monoxide levels have increased from 4 to 4.5g/km. Those figures plus the new engine family designation suggest significant internal modifications have taken place that enable it to burn more fuel, which suggests a higher power output.
That all adds up to a bike that’s significantly lighter and that will produce more power than the model it replaces, which in turn means it’ll be faster.
Oddly, CARB documents have been filed for two different versions of the 2011 Speed Triple, one for the old model and one for the new one discussed here. That suggests the bike will be a late release, likely going on sale next summer, with the current model sticking around till then, or some such similar arrangement that would require certification for two different models in the same model year.
The Triumph Tiger 800 is scheduled for an unveiling at Intermot Cologne on October 5 and it would stand to reason the Speed Triple would debut there too, however Triumph could choose to delay the launch until the EICMA show on November 1 or even the godforsaken NEC show in England on November 27.
It’s time that we eat a bit of crow here. When we said, “Rumors are also swirling of additional Triumph models adopting this new  engine,” in this article on the spy video of what appears to be the Triumph Tiger 1200, we were operating on third party information from other journalists. We typically try to avoid publishing unsubstantiated information or rumors and try to focus on tangible facts, as published here, we must have had a weak moment.