My shoulders are about 38-39". The Eros Donna had 36" bars which were way too small and made my hands go tingly. I switched out the 36" for 42" and they work fine, although I suppose 40" would be ideal.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks