Quote Originally Posted by jilliebeanmn View Post
2014 Cannondale Quick-a hybrid with flat handlebars.
You might want to try posting in the Health forum for advice. It could be a problem with reach, which might be fixed by a different size stem or different handlebars. But it also might be an issue with core strength or flexibility. When my lower back hurts, it means I need to stretch my hamstrings.