Stunning difference in power R vs L

[lauraelmore1033]

I suspect you are right to be concerned. Now, I don't know anything about anything, but I can relate my own experience with a big disparity in output between legs. For years (maybe 3-4) I noted that my left leg was significantly weaker than my right. My left leg was so much weaker that it left marks on my bike where my heel would strike the crank arms. Deep grooves. Long story short, herniated disc later, referred pain all on the left side, lesson learned. Lots of strength training focusing on core and back body and such and my body is so much more balanced and a lot of my issues are resolved. Look into it!