Well, it seems my rear SR278C hub is no exception when it comes to bearing issues - it developed a play. Has anyone here tried replacing the bearings themselves? Do I need any special tools?

At 180 cm tall, this was exactly the same thinking process when deciding between sizes 52 and 54 (with an older handlebar/stem combo)

My wheels have finally arrived and made their maiden voyage.

https://serenadebikes.net/23mm-internal-high-performance-aero-bike-wheels-build-with-carbon-fiber-spokes-p6704522.html
50 mm deep, 5 mm carbon spokes, silver hubs, HG freehub; weighted at 1196 g (without tape)

Paired with GP5000 in 30 mm version (clincher version, measured at 31 mm) and TPU inner tubes they feel fast and noticeably more comfortable than my previous wheels with Sapim CX steel spokes. The ratchet also has a nice metallic sound to it ...

How long did it take from placing an order to delivery and where to?

I've that model in 60 mm. I got them for this season and have been riding them for around 2 months now.

They are massive upgrade to the Elitewheels I had before. The first things I noticed was the acceleration out of the corners etc. But just in general it feels like my bike is just faster this year. My power have not increased, but my speed have and the only thing I really have changed is the wheels (this almost makes it sound like a miracle product.. It's not - but I'm really pleased with it). 

I don't know what the forum rules are on this, so I won't just post it, but I've a 8% discount code if you need it.

EDIT: if you want to hear them:

https://www.instagram.com/reel/DW6bMlACLtb/?igsh=ZGZ6bHMxcnUwbHFx

Just watched/listened to your posts on these wheels yesterday. Cool stuff!

The thing is, I mostly do longer and steeper climbs when and where possible. I currently run ICAN AERO35s with 21 mm internal and 35 mm depth on Sapim cx-ray spokes that weight just below 1300 g that I bought new on auction for a fraction of the sticker price. The wheels are fine and all, but I am very tempted to try deeper wheels with carbon spokes (3.5 or even 5 mm) and would love to decrease the weight if possible. I will also need to check the aesthetics of 60 mm deep wheels on my bike.

I've been eyeing these wheelsets for a while now, but I am so confused with all the hubs. What should I look for a decent ratchet (DT) style hub? I am at 78 kg more or less climbing avoiding sprints if possible, if that matters. Any suggestions? 248/268?

To confuse people even more, some brands (e.g. Colnago) have a completely different sizing system while using more or less the same numbers. It all boils down to geometry charts instead of relying on commercial sizes (such as 54, M, long etc.).

I’m 175 and highly recommend u take size 52!!

Finally, some common sense! I don't understand the logic behind people with long torso opting for a bigger bike (i.e. longer seat tube resulting in a higher seating position) and short stem. Wouldn't be more logical to go with a smaller size frame and longer stem instead in such cases?