text: i need to know what strecthes to do, when you ride a bike?   the muscles most worked when biking are the "quads" and the hamstrings in otherwords your upper leg.cross one leg over the other while standing, feet flat, and slowly try to touch your toes. this will stretch behind,the hamstrings. for the quads, stand and hold the onto the wall with one hand. with the other grasp the ankle, bend at the knee and the ankle should stretch towards the butt.