lightweight Guru

[feta99]

This just caught my eye. Could it be too light?

http://www.bikeradar.com/road/news/article/guru-introducing-747g-photon-road-frame-23243

[gemship]

too light you ask? I guess we won't know till it gets used and abused. It's only a claimed 60 grams lighter than a medium size Cervelo r3sl. Heck from the pic it even looks sort of like the r3 in the rear triangle/stays area.

[54ny77]

interesting.

[keevon]

According to Guru, today’s high-performance rider is looking for a technological advantage to justify a new bike purchase, and the primary way they identify that advantage is through weight, or lack thereof.:crap:

[torquer]

New Parlee Z5 is around 800 grams, too. Folks quibled about what tradeoffs were necessary to acheive that weight (BB30 discussion comes to mind), but I don't recall anyone asking if that was too light.

[Jas0n]

New Parlee Z5 is around 800 grams, too. Folks quibled about what tradeoffs were necessary to acheive that weight (BB30 discussion comes to mind), but I don't recall anyone asking if that was too light.

Keep in mind the Guru features an ISP ...

And I would think Parlee would argue the BB30 isn't a trade-off at all.

[spacemen3]

That is a good looking bike. I don't know what too light is, but I've never been worried about riding a heavy bike. I am bothered, however, that I don't have a higher level of fitness. :)

[Bob Ross]

Doesn't say what size frame you need to get that 747g weight. fwiw, Brent Ruegamer's Zen Uberlight frames could be as low as 650g in the smallest sizes.

Of course, look where that got him...

[mpetry]

or at least until surpassed by the next round of gimmick superiority.

And I do hope their "FEA Tools" are tweeked better than the ones Boeing is using to design the 787.

Mark Petry
Bainbridge Island, WA

[maddog17]

Doesn't say what size frame you need to get that 747g weight. fwiw, Brent Ruegamer's Zen Uberlight frames could be as low as 650g in the smallest sizes.

Of course, look where that got him...


why did he discontinue the uberlight?

[Bob Ross]

why did he discontinue the uberlight?

I really don't know the whole story, but I suspect it was simply the first step of a one-piece-at-a-time approach to discontinuing his entire product line. (RueSports is in limbo last I heard; the economy plus some health problems forced them to the brink of ruin.)

Or maybe his Uberlight CF supplier went belly-up.

Or both.

I dunno, I'm just talkin' outta my butt...



Back on topic: Gurus seem like decent bikes. I'd check one out.

[Tobias]

Could it be too light?
Not if it is strong and stiff enough, and able to withstand impact loads. On the other hand less material to make it lighter (assuming everything else is equal) works against these functional necessities.

Whether it is good enough or not only time will tell. In any case it’s not something I’d ride to save a pound or two on a bike.

[feta99]

I read the press release and got the impression that Guru was trying to build the lightest bike possible because they think that is how customers choose a new frame. Some customers might choose a frame solely for its weight properties but personally I want to know how the new bike design affects the ride characteristics.

Does anyone know what is HS 40 carbon fibre?

[Ti Designs]

Once again, when commenting on ultra light bikes, frames and components, please state your own heigh and weight - just so we get the whole picture...

[soulspinner]

Once again, when commenting on ultra light bikes, frames and components, please state your own heigh and weight - just so we get the whole picture...


Wouldnt help me much-at 5-10 and 168 pounds Im almost 15 over race weight. Grams? I need a zero pound bike.. :p

[Bob Ross]

Once again, when commenting on ultra light bikes, frames and components, please state your own heigh and weight - just so we get the whole picture...

Happy now?
I dunno, I'm just talkin' outta my butt...which is attached to my 6'0", 173lb body

[Tobias]

Once again, when commenting on ultra light bikes, frames and components, please state your own heigh and weight - just so we get the whole picture...
Let's turn the question 180 and ask you how small a rider you think should ride a 747 gram frame? :D