Someone recently mentioned the through axles and that they are custom. Do you know whether I will be able to fit the Tailfin Universal Thru Axle? It works with different threads thanks to 2 parts. May there be anything stopping me from fitting it?

I went through most entries of this thread that contain a discussion about the frame size and I had the impression that more ppl sized up, rather than down, with a good potion going for the suggested size. But I didnt do a statistical analysis (yet).

Since testing the frame in real life is no option for me (I live in Europe) the only things I can use to estimate the optimal frame size are indeed my dimensions and comparisons to what I know works.
Statistically on average, the rider's height is a good indication of what frame size one needs. It's just a gaussian distribution, some ppl forget sometimes.

I got the current fit from a professional bike fit and feel good with it. I use 2cm of spacers and a 110mm stem. Both details that I would be able to fine tune when starting form a similar geometry on the new bike.
For the final reach, for example, I am planning to calculate what stem length I need, considering the current setup and both handlebar dimensions.

My hesitation comes from the fact that the gravel bike size recommendation from LC was on point, while this one's seems to be way off to me. And I am wondering if I am missing something.

Hey there! I am farni I am new here.

I already built a gravel bike from the LCG074-D and I loved the process.
I am now planning my endurance build and am currently hesitant about the sizing. I already gathered from this thread that many of you ignored the LC height/size recommandations and often sized one up.

My problem/question:
I followed the LC recommendation on the gravel frame with a 550 and it worked out fine. I could get a good fit and stack and reach are pretty much equal to what I was used to before from my current endurance bike.
On this one, my 183cm height and 87cm inseam suggests me 540. But when comparing my current geo with the one from the LCR018, I get good agreement with 580 - 2 sizes larger! Also in size recomandations from western bike brands I consistently land in the lower 58er range.

My current reasoning: I trust the stack/reach numbers I am confortable with right now, take the 580 and adjust with a slightly shorter stem if needed. I am only a bit afraid that it may just be too huge. What do you think?