I'm having some discomfort on my bike and I'm just wondering if people\ncould diagnose what it might be.\n\nMy neck usually hurts after a long ride. I find that it's uncomfortable\nto look straight on for a long period of time, I prefer to look somewhere\non the ground and occasionally glance up rather than strain my neck. I\nthink my neck pain is a result of the occasional looking forward I do.\n\nI seem to have pain in my upper arms after a ride which is the kind of\npain felt after a weight lifting session. I think the pain in my arms is\nbecause my position requires me to prop myself up constantly so my upper\nbody weight is on my arms. I swear the muscle tone in my upper arms is\nmainly from cycling.\n\nMy lower and upper back usually arches although nothing serious.\n\nI also find it hard to have my seat position at the right height. I have\nit maybe 1-2 inches lower than the suggested position where my leg is\nalmost fully extended. I feel like if it's the correct height the\nproblems I have already are increased.\n\nThe feeling I have is that my bike is too small. I have a large (56")\nwhich was suggested by the bike shop. Looking on a chart I've seen that\nfor my height (6'0") I'm on a border between large and extra-large.\nAnother chart which uses inside leg suggested extra-large.\n\nOn the whole the discomfort isn't that bad, my bike is still enjoyable to\nride but I'm wondering if I could get more out of it.\n\nIs my prognosis correct? Any other suggestions?