Plenty of the real pros use the KIY for offroad. Nothing wrong with it. There are many parts to this radio and you have to be meticulously clean about keeping the radio dust and dirt free is all.

There are open contacts in this radio (if you decide you need to take apart at the track), that are prone to getting dirty/gritty in a dusty offroad environment. Just keep it clean and get it serviced by KO every year.

It IS the best and most direct feeling radio I've ever used, IMO. I'm still on the V1 master unit and switched over to the latest expert grip.