Married guys....I need your advice?

My husband has wanted a motorcycle for the last 6-7 years and I have always said no because I don't consider them safe. Last year I finally agreed to let him purchase a motorcycle if he took a safety course and bought a good helmet and riding gear, etc. He did all this and got his motorcycle. About 2 months after he bought his bike, he was in a pretty bad crash and suffered several broken bones and a concussion...ironically, the bike didn't have a scratch on it (it landed in pile of wet leaves and he landed in someone's gravel driveway). This accident was huge reality check for me and ever since I have been petrified of losing him in a motorcycle accident. Every time he goes for a ride, I worry and pray and sometimes cry until he comes home or calls to let me know he is okay. I have begged him to get rid of the bike and he has seen how upset I get when he goes out on it, but he refuses to get rid of it. I can't take much more of this stress...it's starting to take its toll on me physically and emotionally and it is creating tension between the two of us. I feel bad asking/telling him to get rid of it because I fell like I'm being selfish making him get rid of something that he loves. On the other hand I feel like he is being selfish for not taking my feelings into consideration. I'm torn between wanting to keep him safe and wanting to make him happy. What do you think I should do?