Join Date: Aug 2009
Location: Brattleboro, Vermont, USA
Having thought about why my car is comfortable and the bike is not for the long haul I realized that much of your leg's weight is supported by the front edge of the car seat.
This effectively makes the front edge of the seat the fulcrum and your thigh bone a lever with the weight of your leg counterbalancing your butt. This takes some of the weight of your torso off your rear. In a car with an adjustable car seat I like the front edge of the seat up for this reason.
On the bike your leg is supported by your foot and your butt as there is no front edge under your thigh. So your butt supports your torso and 1/2 the weight of your thighs. More pressure on the delicate tush and tail bone.
I've seen some discussion in this thread about thigh support. That may be key if there is a practical way to add that to a bike. Thigh supports. Flip up, fold down. Just thinking out loud.
89 GL1500 111+K (not my 111+k, yet!)
86 Honda Elite 250 -3k miles
85 Suzuki 450
86 Honda VT 500
1980 Panasonic Bicycle with 50 cc motor
Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity. - MLK, Jr. 1963