If you have back, neck, or knee problems I cannot recommend a professional bike fit strongly enough. I'm 66, degenerative discs in my lower back, pinched nerves in my neck, and sandpaper for knee joints, lol. After riding with pain for years, someone bought me a bike fitting as a gift (probably tired of my whining). I can ride 40+ miles now pain free! Fittings run between $75-150 depending on who and where. Worth every penny if you go to someone really good. I don't ride clipped in and my fitter showed me things to do with my feet on the pedal to eliminate my knee pain. He changed out my handlebars and adjusted my seat height, angle, and reach. No more pain in my neck and between my shoulders. No hand pain. I am more stretched out than upright (around 50-60 degrees) and it helps open up the space between my discs. Seriously amazing. I always thought biking was supposed to hurt - NO! Check your local reviews and find someone good to fit you properly to your bike.