THese seem to be taking over.

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DJW

heh, the top tube does look nice and narrow at the middle and bottom but they just had to throw in some wonky shape up near the top!

I wonder if its a deal they make with the big brands - "we will ignore you ripping us off as long as you screw up the head tube"

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

Tubulars.

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MS: Exercise Science
Your speed matters a lot, sometimes you need to be very fast, where sometimes you need to breakdown your speed.

Which shape up near the top are you talking about, the one behind the stem or actually in the head tube? Both are documented to work, although IMO the behind the stem one is smaller than I'd use.

Chris

Looks like everyone bought a Sampson 745 TT. Nice.


http://www.sampsonsports.com/Sampson-745-TT.asp

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customerjon @gmail.com is where information happens.

so if we follow the head tube up from the fork -

it is narrow and tapers down even more narrow, then about 3/4 of the way up, a sudden bulge

looking at it from fork to head tube is a nice glorious p3/shiv head tube then BAM WHY?

Maybe this is some clever wind tunnel tested stiffness thing, you say it is documented to work but I've never seen it before. what are these documents and how do I access them? =)

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

It's an airflow split line that guides some air down and some air up. Not rocket science. Actually maybe it sort of is? Anyway, it's definitely something that is done frequently. I doubt it makes any difference in stiffness, other than to be able to accommodate the steerer.

Chris

haha

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

If that has a standard mount rear brake, I'll probably get one for next year.
While I finally got my rear brake to "work" with a simkins egg brake,
I'd prefer a plain-jane mount for the rear.

Me likey the front fork.

Seems like there would be 9" of cable in the wind if the brake is in the standard mount. I can't really see that being the case.

Chris

good point. and it would be too sharp of a turn coming down from the top tube, throught the seat tube, and then back out. sucks.

I have been following this thread and have looked at some of the frames that have been mentioned. However, I can't find any larger frames that would fit me (I'm 6' 4" and ride a 63 cm Serotta road bike). Anyone have any suggestions for finding larger Chinese carbon TT frames?

Try gotobike. They're most likely to have a larger frame; realistically though, most of these frame companies are only interested in mass-market frames, and you'll probably have a hard time finding one in your size.

If you need a 53cm frame though, you literally have hundreds of choices.

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MS: Exercise Science
Your speed matters a lot, sometimes you need to be very fast, where sometimes you need to breakdown your speed.

Hi!
Did you buy headset with frameset also? I have now small problem with them because it is catching looses...

They just sent me a price list. I may buy a set of their wheels. Nice stuff great prices.

looks pretty cool, I've seen this on the blogs in matte finish too.

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Want: 58cm Cervelo Soloist. PM me if you have one to sell

Vintage Cervelo: A Resource

Sorry, I'm not sure if I understand.

I am actually having some issues with the headset that came with the frame, during the fitting i dropped the frame on its side, there was no damage to frame (these are tougher that we think) but one of the seals on the headset popped off. I'm holding off until after my next race to replace it since it's a little late now. It's not an issue if I keep everything in the headtube compressed properly. I've done a couple of races already this season, and I've had no issues.

Do you mean that the headset is catching and seems tight? You probably tightened the top bolt too much. You may also have to place the silver ring that came with the headset on top of the assembly (right before you put on the dust cap that goes under your spacers.)

interesting article for anyone considering one of these chinese frames..
http://www.cyclingtipsblog.com/...bikes-created-equal/

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Coaching - Future Endurance

Been reading through this thread. I am a cost contious consumer and really think that spending 3k on a frame is just crazy. Unless you are sponsored and someone buys it for you. I've seen these Chinese frames on ebay and am a little curious. ALSO. I own a design firm and would love to do my own design for the company and write it off! Ha! I am concerned about quality and reliability. I'd like the frame to last 5 years or so. Also, I am not going to be a top level competitor as I just don't have that kind of time. I'll be an Ironman finisher one day but really don't see Kona in my future. Well, yet. I would like to get the straight skinny from someone that has one and has put it through the paces. Let's talk so I can make a decision. Anyone in Dallas Texas?

I brought one of these recently and have been riding it for about 4 months. It is a great ride, very stiff and does the job for me. I recently raced in a WTC 70.3 race and rode a 2:34, and qualified for the world champs in vagas and this was without decent race wheels, I used mavic aksiums. I have just brought some planet x 101/82mm carbon wheels and I reckon when I get them on it and a bit more training I will be undet 2:30 for the 90km no problems. The bike goes great.
The road was pretty rough and the course had about 4 sharp speed humps and I gave the bike a real working over and it stood up nicely.
For that price why would you want a bike to last 5 years, you could upgrade every year or so.
For me it's less about how big your wallet is or what brand of bike you ride and more about how much work you want to put in to get faster.

Guys, so many of you follow this post that if you opened a little "testing foundation" and all chipped in a few dollars, there'd be more than enough to have one item bought and sent to ST to have tested for the benefit of the community... You could do that again and again for any items you are interested in and suspicious about...

I like that idea. We need a little more Democracy on the retail side of Tri bikes. I'd be interested in starting a website to post information about chi-carb road and tri bikes. Wheels too. I can pay $2k for a built bike but really? I'd rather invest the cash in swim instruction and support gear.

Image link bad on last post.

Edited.