More info on this TT Frame????

[Bike enthusiast]

http://i212.photobucket.com/albums/cc33/pbtrinh06/Carbon_Time_Trial_Frame.jpg




Just a generic frame, wondering if anyone knows anything about it? I couldn't find a website or anything.

[Dalai]

Possibly latest frame (speculation only :) ) by http://www.xds-carbon.com/index.asp though not listed on their site yet...

As Karbona which rebranded their previous frame (XB-14 also used by Planet - X, Ridley for Cadel etc) has this frame also now listed as available on the Karbona website...

http://www.karbona.com/pro/b-1-4-12-1.jpg

[thehammerdog]

lks very cool. Do you plan on building it?

[goofycc]

Holy seat tube, Batman!

That is one slick looking frame.

[^*^BATMAN^*^]

Holy seat tube, Batman!

That is one slick looking frame.


You rang?


There is companies in asia that just pump out generic frames like this. That are picked up by a handfull of companies, and sold as the best frame out there. They are all the same, so I would figure out what companies sell this frame, and grab up the cheapest one.

I just dont like the look of the carbon like that. I like well painted bikes.

[Bike enthusiast]

^^^ +1

I would also prefer it to be painted, it's kinda ugly with that huge 12k weave IMO.

The weidest part of the frame is the chain stay dropouts.... Why does it go up at the rear? Are they trying to lower the center of gravity?

Makes me wonder what companies will be rebadging this frame and selling it for top dollar.... I guess we'll see!

[johanfl]

Two things about that frame.
The gap between the rear wheel and seattube is too big, and size is determed by lenght of toptube only.
The seat tube lenght is always 545mm regardless of size. I don't know if that is a negative thing.
You can find a pic of built up frame here: http://happymtb.org/forum/read.php/1/789729

[Dalai]

@johanfl - thanks for the link with the built up photo. With that wide gap between the seat tube and rear wheel, it looks as aero as the old Wilier Cento Crono :rolleyes:

[rockabilly808]

can't tell you anything about other than that it;s ungodly ugly

[tasr]

Two things about that frame.
The gap between the rear wheel and seattube is too big, and size is determed by lenght of toptube only.
The seat tube lenght is always 545mm regardless of size. I don't know if that is a negative thing.
You can find a pic of built up frame here: http://happymtb.org/forum/read.php/1/789729


http://happymtb.org/forum/file.php/1/file=52343

If this is this picture you’re referring to. I don't think this it’s the same frame. Look at the down tube. There also doesn't seem to be the upward angle at the end of the chain stays at the drops. Although I think it could just be the angles of the pictures them selves.


The weidest part of the frame is the chain stay dropouts.... Why does it go up at the rear? Are they trying to lower the center of gravity?Shorten the wheel base, lower center of gravity and stiffer.

I like it. Where did you find it?

[johanfl]

Hmm.
Now you made me a little unsecure if the built up frame that i linked to is the same frame in the first post.
But i'm pretty sure that it is the same frame.
Here you can see the frame in action: http://www.youtube.com/watch?v=wQU7Mrr9JVA
I the film you can see the upward angled chainstays. (I think)
And you canb get the frame here: http://www.kuipertrading.com/?pagina=frames_carbon

[Dalai]

Small photo johanfl but I think it is the same. I didn't realize Kuiper was selling this also!

From the you tube footage, link to another 'brand'...
http://www.avelo-bikes.com/cutehack/data/upimages/1200702921.jpg

http://avelo-bikes.com/index_eng.html

Don't have to worry about whether you can't fit a credit card between the rear wheel and seattube as per UCI regs :eek:

[johanfl]

It is the same frame isn't it?
No, no worries about that UCI rule on this frame ;-)
But what i don't get is when in process of designing the frame that one can miss such an obvius thing.
I mean you want the gap to be minimal (and still comply to UCI reg) to get the most aerodynamic effect.
What do you think about the fact that the frame come in one size regarding the seattube lenght? Is that a problem?

I'm gonna get this frame instead:
http://archive.pixbox.se/arkivet/synligt_18/17290000-17299999/640x480/17294854.jpg (http://www.pixbox.se/pic17294854)

[^*^BATMAN^*^]

Those wheels look crazy.

[tasr]

I'm gonna get this frame instead:
http://archive.pixbox.se/arkivet/synligt_18/17290000-17299999/640x480/17294854.jpg (http://www.pixbox.se/pic17294854)If you get this, can I fly to Sweden and ride it? :p

[Dalai]

Those wheels look crazy.

Grammo Sonic - double spoke design then carbon wrapped :eek: http://www.grammo-bici.it/index.php?pageid=6&product_id=44&brand_id=1

Discussed a while back on weight weenies http://weightweenies.starbike.com/forum/viewtopic.php?t=28636&postdays=0&postorder=asc&highlight=sonic&start=0

More details http://www.rouesartisanales.com/article-12488441.html

[Bike enthusiast]

Wow, what's the genius frame called???

I heard that the cutout for the rear wheel shouldn't be too close to the tire because of the airflow of the spinning tire being hindered... Which kinda makes sense.... There's a lot of high speed air trying to go around that wheel....I'm not sure how much a gap is too big or too small, but it's interesting.....

[ranger5oh]

Small photo johanfl but I think it is the same. I didn't realize Kuiper was selling this also!

From the you tube footage, link to another 'brand'...
http://www.avelo-bikes.com/cutehack/data/upimages/1200702921.jpg

http://avelo-bikes.com/index_eng.html

Don't have to worry about whether you can't fit a credit card between the rear wheel and seattube as per UCI regs :eek:

This thing looks like a hunk of carp. That rear gap is ridiculous.

[Dalai]

Wow, what's the genius frame called???

I heard that the cutout for the rear wheel shouldn't be too close to the tire because of the airflow of the spinning tire being hindered... Which kinda makes sense.... There's a lot of high speed air trying to go around that wheel....I'm not sure how much a gap is too big or too small, but it's interesting.....

I would think the turbulence created by the space between the whole seat tube and the rear wheel whilst the bike is moving forward at 40km/hr, is far greater than the airflow from the 22mm wide tire as it spins up towards the frame.

[johnopower]

frame needs a pair of 28mm tyres and a pannier rack... full aero.

[WxGuesser]

isn't it cool how all our Taiwanese frames get labeled by so many different companies.. lol

[johanfl]

This is the fram i ended up with.
I just got it but it looks promising. The gap between the rear wheel and frame is minimal.

[Triguy]

Johan, frame looks cool.

Any chance you could measure the downtube and headtube widths??

[johanfl]

Sure.
The downtube is 35mm and the headtube is 46mm-50mm.