I have a carbon fiber yokomo buggy chassis (any idea what it is?) that has square wheel hubs with 4 screw holes, has anyone ever come across any of these? is there somewhere i can get wheels for it or better yet adaptors for regular hex hubs? i have tried taking them off to replace with a pin and hex but the axles dont have a hole in, just a flat bit where the grub screw grips
any help would be much appreciated

Thanks