Ghostrider reached down into the unterworld, Rip said iliopsoas muscle pains in lower back on long rides can indicate weak stomach muscles or sometimes too high of a seat post can tweak the hip flexors. He said he would try to remember another cause, he had been so long on a bent on the other side, his memory is impaired. He congratulated downtube42 escaping the darkside and entering back into the light.GL!!