my throttle hand gets numb also. I try to bend my elbows a bit, take pressure off that hand, and it works a bit. It still gets numb but it gets numb later in the ride now. And something else that gets my hands numb faster is when I wear my backpack, it puts more weight on my hands. But I found that I forget and straighten out my arms when I ride therefore putting all my weight on my hands. Just fool around and youll probably find whats bothering u.