I have more of an issue when I ride of the lactic acid buildup in my quads rather than true muscle soreness. I do get pain under the kneecap after 15-16miles, the chiropractor stated that it is probably some inflammation and to do squat stretches and ice it afterwards till the muscles balance out and all become equally strong. How else can you clear lactic acid from muscles besides time, not drinking sugary or milk products, staying hydrated, stretching and spin rather than grind the gears? Quanine in tonic water?