Currently I am in Washington on the Northern Tier. Over the past few days I've found my knees hurting a lot more then they should (preferably, they shouldn't). At 20, I feel like my knees should be able to stand up to some some reiding every day. Are there any suggestions on adjusting my bike to help with this? What about riding style? I've noticed that I ride at about a cadence of 70-75 while climbing.