What power will the 2016 thruxton be

[rufusgti]

Hi
I can't find the info. Is it out yet?
I had been excited by initial bumf on the new Bonney range, lots of talk of abs, traction, lots of power etc etc. But this months Ride mag has a review of the street twin 900 and the power is 54hp... I believe the thruxton is getting the 1200 so there's still hope for a decent powered bike. Has anyone get any more info on the range as Google brings up plenty of noise but no real figures. Triumph site is even worse.
Thansk

[Pothole]

Street Twin has huge torque, was designed to be low power high torque. I don't think any BHP figures are out for the Thruxton R yet

[TimmyWimmyWoo]

On the press launch for the Street Twin they deliberately didn't tell the journos the power figure until after they'd had a morning riding it. It's down on power compared to the old one, but makes a lot more torque lower down so feels more powerful. I imagine if they went into the ride knowing it was down on power that could've altered their opinions. Not sure what the 1200's power will be, but imagine it won't be a huge headline figure, with more emphasis on low-down wallop.

[skahigh]

My 2014 Thruxton is 68 bhp and with the new engine being a water cooled 1200 I'd expect it to be much nearer the 90 bhp but as already stated, the power figures have not been announced yet.

I'm extremely tempted to trade for the new R model.

[Janluke]

Not read anything official but I'm guessing around the same as an XJR1300(but perhaps a little lighter) so 100 ish bhp and 75 ft-llb torque

[Tall_Paul]

82 ft lb of torque at just under 5000 rpm, I think that'll be plenty maybe 100-120bhp, maybe as low as 90. The torque will be the main factor though.

[Speed addicted]

Tall_Paul said:

82 ft lb of torque at just under 5000 rpm, I think that'll be plenty maybe 100-120bhp, maybe as low as 90. The torque will be the main factor though.

Sounds ideal for the type of bike really. The Thruxton R with a half fairing is extremely tempting.

[Max5476]

Tall_Paul said:

82 ft lb of torque at just under 5000 rpm, I think that'll be plenty maybe 100-120bhp, maybe as low as 90. The torque will be the main factor though.

Triumph have not announced anything yet, but don't forget horsepower is just the rate of doing work, therefore if you know the torque and the engine speed you can make a pretty decent approximation of power, so all you need is a torque / rpm chart...

[sbird]

Thruxton launches is April, and the Street Twin launches tonight (Thursday). At the bike show they only quoted torque figures for either.

I'm going to test ride the Twin next week, to see if it's got the right amount of poke for city (including urban NSL dual carriageway) riding. it would have been nice to do that back-to-back with a Bonneville/Thruxton.

[Hooli]

Speed addicted said:

Tall_Paul said:

82 ft lb of torque at just under 5000 rpm, I think that'll be plenty maybe 100-120bhp, maybe as low as 90. The torque will be the main factor though.

Sounds ideal for the type of bike really. The Thruxton R with a half fairing is extremely tempting.

Torque is what you need, HP is only good on screamers.

[gareth_r]

Max5476 said:

Triumph have not announced anything yet, but don't forget horsepower is just the rate of doing work, therefore if you know the torque and the engine speed you can make a pretty decent approximation of power, so all you need is a torque / rpm chart...

If you know the torque and the engine speed you can make an exact calculation of power.

In Imperial units, BHP = ft/lb * RPM / 5252

The Thruxton R has 82 ft/lb @ 4950rpm so all we know is that it produces 77.3bhp at 4950rpm.

MCN reckon the Bonneville T120s (77 ft/lb @ 3100rpm) will be £9600, and they guessed £12000 for the Thruxton R.

Edited by gareth_r on Friday 12th February 02:33

[Mr2Mike]

gareth_r said:

f you know the torque and the engine speed you can make an exact calculation of power.

In Imperial units, BHP = ft/lb * RPM / 5252

The Thruxton R has 82 ft/lb @ 4950rpm so all we know is that it produces 77.3bhp at 4950rpm.

That's power at peak torque, not the same thing as peak power.

[gareth_r]

Mr2Mike said:

gareth_r said:

f you know the torque and the engine speed you can make an exact calculation of power.

In Imperial units, BHP = ft/lb * RPM / 5252

The Thruxton R has 82 ft/lb @ 4950rpm so all we know is that it produces 77.3bhp at 4950rpm.

That's power at peak torque, not the same thing as peak power.

Which is why I wrote "so all we know is that it produces 77.3bhp at 4950rpm".


I'd like to know how difficult it was to develop a 900 that produces only 54bhp. Triumph must have worked pretty hard to obtain only 60bhp/litre from a 21st century motorcycle engine. They claimed 66bhp/litre for the pre-war Tiger 100.
In fact, it's a lower specific output than a lot of very ordinary car engines - Vauxhall managed 64bhp/litre almost 30 years ago, and that wasn't even the 16-valve twin cam "red top".

[skahigh]

gareth_r said:

I'd like to know how difficult it was to develop a 900 that produces only 54bhp. Triumph must have worked pretty hard to obtain only 60bhp/litre from a 21st century motorcycle engine. They claimed 66bhp/litre for the pre-war Tiger 100.
In fact, it's a lower specific output than a lot of very ordinary car engines - Vauxhall managed 64bhp/litre almost 30 years ago, and that wasn't even the 16-valve twin cam "red top".

Isn't that the point though? They've worked at creating bags of torque at low revs at the expense of the ability to reach high revs, the result being a bike that feels powerful all of the time you're riding it rather than just when you're wringing it's neck?

My 900 Thruxton is certainly like this, relatively low power output and really not that fast at top speeds but feels powerful and useable from almost no revs which, is most of the time I'm on the bike.

[Max5476]

sbird said:

Thruxton launches is April, and the Street Twin launches tonight (Thursday). At the bike show they only quoted torque figures for either.

I'm going to test ride the Twin next week, to see if it's got the right amount of poke for city (including urban NSL dual carriageway) riding. it would have been nice to do that back-to-back with a Bonneville/Thruxton.

Getting a test ride is definitely the best plan, Triumph waited to release power figures after the journalists had ridden the bikes on purpose after all, its not like they've just released a class leading litre super sports, engine character is surely one of the key characteristics on these new bonnies.

[gareth_r]

skahigh said:

gareth_r said:

I'd like to know how difficult it was to develop a 900 that produces only 54bhp. Triumph must have worked pretty hard to obtain only 60bhp/litre from a 21st century motorcycle engine. They claimed 66bhp/litre for the pre-war Tiger 100.
In fact, it's a lower specific output than a lot of very ordinary car engines - Vauxhall managed 64bhp/litre almost 30 years ago, and that wasn't even the 16-valve twin cam "red top".

Isn't that the point though? They've worked at creating bags of torque at low revs at the expense of the ability to reach high revs, the result being a bike that feels powerful all of the time you're riding it rather than just when you're wringing its neck?

My 900 Thruxton is certainly like this, relatively low power output and really not that fast at top speeds but feels powerful and useable from almost no revs which, is most of the time I'm on the bike.

Understood, but I'm sure they could have achieved that and a higher specific output than a 1980s repmobile.

[FartKong]

From what I've heard the old bike is much faster than the new 900. No idea what the 1200 is like though.

[sbird]

gareth_r said:

nderstood, but I'm sure they could have achieved that and a higher specific output than a 1980s repmobile.

It may not be the reason, but emissions seem to heavily influence engine performance these days.

[Pothole]

sbird said:

gareth_r said:

nderstood, but I'm sure they could have achieved that and a higher specific output than a 1980s repmobile.

It may not be the reason, but emissions seem to heavily influence engine performance these days.

It is a large part of the reason, according to the bloke who gave us the factory tour last year...

[sbird]

Pothole said:

It is a large part of the reason, according to the bloke who gave us the factory tour last year...

Small world. I went on a factory tour last year. All the workers that I met gave the impression that they care about the company and the products, and aren't just doing a 9-5er.

Did you see the dyno runs? I wouldn't have minded a go on that myself.