D675 - A Few More Details

[Diego]

Most everyone here has probably been to the specs page for the new 675 triple, but it will be worth checking out the articles in the new Torque if you receive it.

I'll be interested to hear what others think about things like the stacked gearbox ("a first for Triumph") and internally located oil and water pumps. Definitely a compact layout, but what might we expect in the way of teething pains with such a radical departure?

It should be very interesting to see dyno curves for this machine as soon as anyone has them. According to the magazine, the engine "pulls hard from as low as 2000 rpm....the torque curve on this bike is nearly horizontal, with 60 Nm on call at just 4000 rpm." It already meets Euro 3 specs, so there should be no need for diminished performance in the 2007 model year.

And it's 110 mm narrower than the D650. Very sleek!

[gladgd]

On 2005-09-23 21:38, Diego wrote:
I'll be interested to hear what others think about things like the stacked gearbox ("a first for Triumph") and internally located oil and water pumps. Definitely a compact layout, but what might we expect in the way of teething pains with such a radical departure?

It's new for a Triumph but isn't 'radical' per se. Apparently the current R1 already has it. It was interesting to read that the engine was 'styled' as well as engineered. I guess we just have to wait and see whether there's any problems, but that's what testing is *supposed* to avoid. The first engine went on the dyno early to mid 2003, so they should have everything ironed out.

I agree with you about the torque graphs - can't wait!

Greg

[WANG]

The very first R1 had the stacked gearbox. When did that come out... '98 I think. That design pretty much became status quo for supersport bikes soon after.

Triumph aren't exactly famous for having their stuff spot-on at the start of production, but I think that they are quite rapidly getting better in that respect. Time will tell, it will certainly be interesting.

[WHAT]

The MotorCycle Daily Article linked on the front page had some interesting tidbits.

Some quotes;

"Most notable would be the slender waist of the Daytona 675, which is genuinely reminiscent of sitting aboard a 250cc two-stroke. It is not just more slender than the Japanese 600s, it is dramatically more slender at the point where the rider's knees hug the machine."

"...usable torque is delivered from below 5,000 rpm, whereas a 600cc, four-cylinder machine can need 7 or 8 thousand rpm on the tachometer before punchy torque levels arise. Triumph claims the Daytona 675 provides as much torque at 5,000 rpm as most 600s provide at 10,000 rpm."

"In addition to the typical information, the new instrument cluster provides average fuel ecomony readings, as well as a 99 lap memory timer. Gear position indicator and gear change shift light are also included."

[Diego]

My point was not that the stacked gearbox concept itself is radical these days (I clearly expected most everyone in this forum would know what it was, which is why I felt no need to explain the term), but that it is a tremendous departure from the way Triumph have always done things. Undoubtedly the testing has been extensive, but the test of real world riding is always tougher (viz, Triumph's open surprise at motomag test riders tearing up clutches so easily on early specimens of the Rocket).

There are invariably things to be found and remedied in the first year of any new model. With so many things on this one being new to Triumph, the gist of my question is, what level of confidence does everyone have in Triumph's engineers to get it mostly right on the first try?

[gladgd]

On 2005-09-24 18:51, Diego wrote:
Triumph's open surprise at motomag test riders tearing up clutches so easily on early specimens of the Rocket).

Trying to pull massive wheelies on a Rocket is 'real world' riding? Don't think so. They do alot of riding in many locations but I agree that you can't get as much riding done with test riders as you even the initial batch of owners combined.

With that said I've voted on their confidence with my money - I put a deposit down. I think Triumph are really hitting their stride now.

Greg

[djr]

I think the big difference with the 675 is that Triumph have designed her from the ground up and not taken a standard engine and modded it to suit. The bike in total has been designed to do what it does. There may be some departures for Triumph but none of the technology is a "first" and is well tried and tested.

I doubt there will be more problems with this bike than with any other in the lineup or any other that any manufacturer produces.