I recently joined the forum and interested in getting a complete bike too (would be my first road bike) but I am skeptical about the price of the bikes you linked. I mean, for starters how would you know if the groupset is an authentic Shimano 105? Seems a little too good to be true. In general, where do the suppliers usually skimp on the quality to meet the price point?

From what I've read on this forum so far, it seems like people only go for individual frames / groupsets / rims when going down the aliexpress route. Why aren't the complete bikes more popular?

Sorry I can't offer specific experience but I've been very happy with my Chinese chainrings in the sub $10 range. The paint on the teeth wears off after about 4 miles but other than that they seem to just plug along. I had one at about 800 miles before I lost a couple bolts and seriously warped it, but I can't imagine any ring would survive that.

Nice looking frame! What are the build details?

I was told it would be 2 months from submitting final plan to the frame being completed. It did take another 3 weeks or so to work out the frame details so that may have changed. I'm expecting / hoping my frame will ship in mid to late May. I opted for FedEx ($280usd) shipping to the US which only took 4 days last time. April and May is prime gravel riding season so I'll be late to the party.

What were you using for solution and power supply when you tried anodizing? I did the blue on my other Waltly frame with a 28v power supply and it came out great. It has seemed to dull a bit though. I did the head tube logo and some small bits like headset spacers with 9v batteries clipped together as well. The issue with the batteries is that they don't provide enough current to do bigger items. I ordered a 0v to 120v variable power supply from Amazon that I hope will give better results this time around. It should arrive next week and I'll test it with some extra spacers I have. I have some Ti m5 x 16mm screws coming from AliExpress that I hope I can get to bright pink and possibly green. I'll keep you posted on the results.

https://smile.amazon.com/gp/product/B08DJ25QL2/ref=ox_sc_saved_title_7?smid=A12APH4T5I08JR&psc=1

Personally, if I were to build future wheel sets with these guys, I'd proactively replace the bearings, the ring nut with the DT Swiss Metal version (HXDXXX00N1131S) and replace the star ratchet springs as well (2x of HXDXXX00N1087S) if you are using ZTTO's star ratchet.   Lastly, see if you can snag these with the 36T ratchet instead of the 54T.   Or best yet, snag the DT Swiss 24T Star Ratchet kit (HWTXXX00NSKTFS) which comes with new springs, and the special grease for 44$.

as for bearings

It uses 2x 18307-2RS bearings up front hub (DT Swiss sells replacements - HSBXXX00N2148S)

Uses 2x 6902-2RS bearings on the rear hub main bearing (replaced these with EZO Japanese Bearings).   The free hub I bought it with is the microspline variant which uses 2x 6802-2RS bearings).   The HyperGlide variant of the free hub uses 2x 6902-2RS bearings.   Will find out what the XD variant uses.

Pink vs. Purple Titanium Anodizing:
There is some discrepancy on Pink and Purple Colors. Purple is quite dark and when wet can look brown, which is the color with the lower voltage. Purple can also be difficult to make because it's a
narrow voltage band. A few volts less and it's brown. A few more and its blue. Dark Purple also smears and isn't the best color.
Pink is a high voltage color and is also a different process. It's not true pink and some customers will say its purple. This is not the case. In the store pink is also lavender.