How rough are you guys on your deep Chinese carbon wheels? I'm interested, but I weigh 85-90kg and my local roads have a fair number of potholes.

Im on 60mm deep Elitewheels and 28mm GP5Ks at about your weight and the setup rides OK. I am on an older rim brake frame with a round seatpost though. Everything contributes. I'm switching to 45x30 with 28c tires soon.

I would reach out to Tantan to see if they'll send you a frame....

Been disappointed by claimed weights too many times. I will be shocked if this comes in under 900g unpainted. Not hard to get a 9xx frame, I just got a Cervelo R5 "inspired" Tantan disc frame that came in around 950g with chameleon paint. Hey guys a 2lb plastic bike frame is still pretty impressive lol. Im a weight weenie but theres limits

I bought a set of Elite wheels on Amazon... Quick delivery, thousands of miles, whoosh whoosh sound aero (60mm), no problems. Def the lowest hassle option IMO.

Well that's a bummer. Why they do that...

Its a mystery

This is why, for now at least, I only buy frames with round seatposts.

First order of business - ask the dealer and the manufacturer.

If there is no off-the-shelf part, this may be just barely diyable.

• Easy, but potentially ugly from up close: Make (or have made) an adapter to get from whichever odd shape to round (assuming the seat tube inner cross section is large enough for a circle of at least 27,2 mm)
• Involved and not really recommended as a beginner project (looks depending on skill): Get a replacement post and frankenstein an offset saddle mount to it

If it's a wedge type seat post clamp the easy solution will damn near look stock- again assuming the ability for a 27.2 seatpost to fit.

You would also want the adapter to go down a good bit into the seat tube to spread out the load along a decent amount of seat post/seat tube length (so you aren't just concentrating that load along like 1cm of clamp)

Personally, I hate that round seat posts + outside aero fairings aren't the standard. I just don't like proprietary seatposts. Especially in the China brand world, where brands come and go. I ride a Dengfu now, with a round seatpost thankfully.... those guys are long gone lol.

I was hoping for more contributions on this query.
looking for a lightweight aero frame and also may need a spare set of wheels for rim brake so it goes up and downhill quickly
Really I don't care about tyre width. I'm quite happy with 25c @ 100psi for my 75kg body. Dropped down to 23mm for TTS, but happy with 25's.

After looking on this forum to no avail over the last year, I bought a custom Sarto rim-brake as my new top-end rather than going brand or chinertown, but interested in upgrading the winter bike. I'm worried about top end frames and wheels disappeaing for rim brake.

So if i am after a BSA BB frame and super lightweight 50mm wheels for rim brake any recommendations ?
I've never worn out rim brake wheels and done enough alpine/pyranean decents to be happy with old tech. Why downgrade ?

If I swap over wheels my 2nd bike with 9 speed dura ace weighs in at 6.9kg for a 25 year old ally frame. Should I stick or upgrade.
It looks like the whole of the top end bike industry and chinertown suppliers are going disk, but disk seems to me a solution waiting for a problem.

If the only reply's to this query are "upgrade to be benefits to disk", then thank you very much, I' ll just stop reading the forum, as chinertown is not for me. i thought there remained a niche for high quality rim-brake...

Maybe try asking your question w/o being so abrasive and pretentious. It is possible to ask about rim brake stuff without insulting disc brake stuff. Youre not some kind of hero or renegade for keeping rim brake going.