a fast track to impotence? 
i think i speak for all of us when i say, “whaaa???”
.
.
I have had diabetes for 39 of my 48 years, and have been cycling regularly since 14 years old. Fortunately, the equipment is still working fine. My doctors believe my steady dose of exercise has kept my complications to a minimum. Yes diabetes can negatively affect potency, make sure your bike is setup right so you are not complicating matters.