I have just finished building the bike, but unfortunately I think I will sell it immediately.
The problem is toe overlap: the front wheel touches my shoe when I turn the handlebar a lot at low speed.
For reference, I am 186 cm tall, the frame is size 56, I use EU size 46 shoes and 172.5 mm cranks.
I already have some toe overlap on my Voicevelo Echo, and it is already annoying there, but on this bike it is even worse. The front wheel is simply too close to the pedals / shoes
This is a problem in real-life situations: starting from a junction, turning slowly, riding near pedestrians, crossing narrow bridges, or making a tight U-turn. I do not want to ride a bike while always worrying that the front wheel may touch my shoe.
In a race, this probably would not happen, because corners are taken at higher speed and you do not turn the handlebar so much. But even so, this problem reduces my confidence in the bike.
I hope frame manufacturers will consider this problem more carefully. Many modern aero/race bikes are becoming shorter and shorter at the front. This may make the bike feel more reactive, but for riders with bigger shoes, normal crank length and wider tyres, toe overlap can become a real problem.
Unfortunately, this frame is not suitable for me :'(.
I have learned the lesson: from now on, I will not buy any road bike with a front-center below 600 mm.
For reference, my Voicevelo Echo has a front-center of 598 mm, and toe overlap is already annoying.
The Avenger R8-RS size 56 has a front-center of 591.6 mm, so the problem is clearly worse.
I also noticed that some modern aero/race frames go even below 590 mm in front-center. In my opinion, this is a real problem for many riders.
Even changing from 172.5 mm cranks to 170 mm cranks would only give about 2.5 mm more clearance, so with these very short front-center geometries the problem would still remain.
I think frame manufacturers should consider this more carefully. A bike can be reactive, but it also has to be safe and easy to handle in real-life low-speed situations