Learned from experience, I would let only a select few ride.
Here is why:
Approx. 14 years ago I let a "friend" take my Yamaha Virago 750 for a boot down the street. While speeding into a 90 degree corner less than 100' away from me, his/my rear tire slipped on a manhole cover and he went down. He slid into a curb and made contact with his head and shoulder. He was wearing a full face helmet, otherwise he may not be alive today. He got up from that with sore shoulder and the helmet was destroyed, especially the chin area. The bike also slid into the concrete curb and did extensive damage to the tank, headlight housing and bent the forks. He never gave me a cent after multiple attempts to get him to repair. And this is the guy who we set up with the love of his life and now they live happily ever after with 3+ beautiful kids.
The other example involves my cousin at the age of 30 who hopped on a Honda CR 500 and less then a minute later went into a deep culvert full throttle and died. God bless his soul.
I guess my point is:
- no one takes care of your stuff like you do
- you are liable -no matter what. The cost of the bike is trivial compared to the loss of someone's life who jumps on your bike for a quick joyride
- there are a few people who I would let ride, (inlcluding my brother) but they have to be current riders and ones that I know and trust
- ditto on all the comments ie if you want to ride then rent a harley or go to a demo day
It is just not worth it!