Hi @FabioZang,

many thanks for your feedback! Question is, when did they have updated the version in order to be more waterproof - if they did at all?

If they did, how to ensure to get delivered the updated version and not the previous one. I have reached out to Ltwoo via Emai, but didn't get a response. Via Aliexpress I didn't find a "chat/message button" to get in contact with the "official Ltwoo store" in order to ask them those questions.

You might have more luck when writing to them via email in your language? Could you give it a try?

Are there similar forum chats in China about this topic?

Many thanks, Dennis

I'll chime in here.
I've done 3000k on this set of Serenade Wheels.
They market this as their Allroad/Gravel wheels but I think it really is basically a modern road wheelset.
55deep/31wide/25internal, DT Ratchet style straight pull hubs compatible with DT Swiss freehubs, Pillar Wing 20 spokes (24 front and back) and aluminium nipples, 1450g total weight. I bought them with hooked sidewalls, but they're also available in hookless if that's what you want.

The pictures show these with 28mm Vittoria Corsas. They come up just shy of 31mm on these wheels and form a nice transition between rim and tire, as you can see. Performance wise, they're fast. I paid roughly 480 EUR including shipping and taxes and I think this is all the wheelset you could ever ask for for that kind of money.
The only thing I can criticize is the hubs. I rode these through a very wet winter. The bearings in the front hub started sounding rough in very little time. They turned out to be basically dry with no grease, so they corroded quickly. I replaced them with a set of high quality SKF bearings. The wheels roll fine ever since. The rear hub bearings are still smooth.
But I think if you wanted a tad more performance, you should opt for better hubs. Serenade offers all kinds of hub choices including genuine DT Swiss hubs.
Also, I think Centerlock is a useless standard. The rotors are more expensive. The fitment is not a good as 6 bolt. Just my personal opinion. If I was given the choice again, I'd probably go with 6 bolt interface hubs.

Buying experience with Serenade was OK but not stellar. While pricing is good, the communication was a bit lacking at times. That's one thing I'd recommend you guys improve on. I only really received updates when asking. They were quick to answer any questions upon ordering and VERY SLOW to answer questions on delivery, once the payment was made. That's a bit of a pattern with a lot of chinese sellers IME.

All in all, I can recommend SERENADE. Please note: I was told that they are a reseller rather than a manufacturer, sourcing their parts from all kinds of factories. Maybe you can tell us more about that here.

While I don't really understand the squared design of the downtube, I can not imagine that an average rider would feel any difference. Especially because I guess the front wheel will make the bigger difference in that area and It should kinda shield parts of the downtube from the air flow.

I think the rider position, clothing, ... will make the biggest difference in aerodynamics.

we know for a fact that rider & clothing matter more than the bike itself, it's about 80% rider and 20% bike, afaik.
That being said, a bus shaped tube is a bus shaped tube. Even without a wind tunnel, we know that tear drop / kamm tail shaped things are more aero than round things, or boxes... And we know that buses aren't aero. You wont find an aero frame with a wide, boxy shape like that, nor will you find a frame that touts its aero prowess with a boxy shape like that - until proven otherwise, ofc. Given it's an ultra light frame, and making frames of that weight at this price point is a new phenomenon, and that LC doesn't make any aero claims, i think it's safe to assume it's not aero. Whether it matters or not is subjective. But even if it "only" costs 5W at 45kmh, i try to spend my money diligently, and given how incredibly hard it is for me to raise my ftp by 5W, if i'm going to buy a frame, and if i can, i'm going to avoid buying one that screams "i'm a bus". It's a guesstimate. It's also an aesthetics consideration, as i dont find that boxy shape appealing.

Received reply from yishun,frame available in August,900€ with shipping from Germany.
I think that I finally found my next frame

It's a nice frame.

You will drive at more than 40km/h with this frame without any problem and maintain this speed. Concerning the wall, I confirm the thinness under the pressure of the hand. It reminds me of my Hyper wheels (Winspace), very thin too.

While I don't really understand the squared design of the downtube, I can not imagine that an average rider would feel any difference. Especially because I guess the front wheel will make the bigger difference in that area and It should kinda shield parts of the downtube from the air flow.

I think the rider position, clothing, ... will make the biggest difference in aerodynamics.