The cold has stopped me from riding so far this year. Last year I installed Moose heated elements under my grips. They kept my hands warm on my 85-95 MPH interstate ride back and forth to work 40 miles each way until it got into the 20's then my finger tips would begin to get cold and then hurt..
The problem with describing yes they work they keep my hands warm in cold weather is.. People from the North think cold is below 2 degrees to where people in Miami think cold is in the 70's...
Also we all have different blood circulation to our fingers.. I personally start to get numbness in my finger tips from cold weather in anything below the 50's if I am not moving circulating the blood flow...
So when expressing your expierence please describe the tempatures and also at what temp your hands begin to get numb from the cold while sitting or standing, this will give us a better understanding..
Ive been reading about some gloves that use a lithium ion battery with the heating elements that run down and wrap around each finger tip. They cost around 240.00