Do you have to apply the bag hanging straight down? I know in the hospital I have applied it set off at an angle one direction or the other to avoid hitting things. Is it midline or on one side or the other? If it is set to the left, then angle the bag slightly left and wear a belt to hold the end left. Then you won't hit it with you leg as you ride, and the contents can still drain down and away from that oh-so-delicate skin. Also be sure to use plenty of stomadhesive to prevent leaks. Hope that helps.

Mikki