To be honest, the photos don’t provide much information. Without disassembly, it’s also hard to identify a specific differences. However, this was the first thing I noticed when I received the Lexon. I’ve had a Cybrei for some time now, and I also use a Rockbros on another bike. The Rockbros is much closer to the Cybrei and also specifies 50 Nm for this bolt. Both my Cybrei and Rockbros are torqued to 50 Nm. With the Lexon - this is just speculation, or maybe my eyes are deceiving me - the thread doesn’t seem as deep as Cybrei.