I have of carpal tunnel . My hands go numb and I loose all feeling in both hands . It's been happening for yrs , but now it's starting to become WORSE , and the doc says there are surguries in my future . I put the bike up for a few months to give my hands a rest , but it didn't work . So thats why I wanted to try 1 more time to ride , but ended up with the same results , no feeling in my hands , they just fall off the grips whenever they want , cuz you cant tell when its gonna happen (no feeling)(very scary !!!!)