Just get really good with squats and you should be able to balance. I have peed in the woods a lot on hikes and mountain biking.Somehow, my normal urge to go every 30 minutes seems to go away when I ride on the road. I probably need to drink more, but it does seem like I shut down a little. When my son raced, he used to pee in his shorts all of the time. He did not smell nice when he came home.....