My experience is that the k1 feels a bit lighter and "free". Possibly a bit more nimble. The bmax feels planted, and with more grip and traction which lets me drive a bit harder with less mistakes. I find it easy to get it right and to make changes for the better if required, however with the k1 I was always chasing setup which I struggled to achieve. The bmax definitely helps me be more consistent and is yet to break at all. (Tempting fate here)
