shhhh right now I am a bit confused what to choose. Maily because LCR018-D with front derailleur will fit 38mm tires only. I was wondering with 40 but it just can handle 1x shifting and I would build 2x. Would i feel much difference between 35mm(this frame max tire clearence than 38mm LC)?
So i never had any better bike than my current corratec superbow world cup from 2005 which I use as a roadbike. Kinda funny but never had budget and also it was never a problem for me to just have fun with cycling. Last week I did 250km on it with 2.0 mtb tires mainly on road but mostly I did short ride 30-60km (90-95 on road,5-10% forrest,gravel). As beginner i did a lot of mistakes such as i bought bike 1 size too big so i ended up with too big bike with cutted all bridge pads so needed to buy new bridge with 45up degrees to ride comfortable.
So as you said you would be suprise if this could be 10x more aero than LCR018-D then what would you suggest to buy.
The outdoor aero testing I do is not a gold standard type of anything and it’s specific to me. However, the aero differences between bikes that you can notice IME come down to position. Being able to keep your front end narrow and stable, elbows tucked in is worth a lot of watts. Being able to get your back into the flattest position you can, likely worth a lot of watts.
That said, I cant tell you that you will be able to make use of the potential difference between the LCR018-D and the LTK266-D-SL. Nobody but a bike fitter can do that.
As someone who does take advantage of position differences (and the LTK is actually not aggressive enough for a pure road bike for me) the difference between my custom road bike and the LTK “test” bike is not that different than the difference between by custom road bike and an SL8 or a Dogma F12. Does that make the LTK fast? No, it means that the resolution of position and fit things like keeping my elbows tucked in drown out the impact of tube shapes.
If you just want a fun bike to ride, I would just buy whichever one you like the look of best. After all riding the bike is what matters.