I have no idea but I assume this person VESC swapped also.
Note about VESC swapping SBX is that the Plastic Caster Bases / SR360 slip ring covers have 3.5mm bullets coming out. Same size as MR60. So if you wanted a drop in controller you could use many that come with MR60 MT60. Wires would be too short for a dual but two singles is ok.