I agree with Alpine Rabbit. Weapons give false security.

I live in rural areas. I have ridden, hiked, x-c skied alone for years, never had a problem. The solitude is wonderful, one of the reasons you take up a solo sport.

Use common sense.
Tell someone where you are going and when you'll return.
Carry ID (I have all my contact info on a card in my saddlebag)
Be prepared with tools, water, first aid kit, and knowledge.
Turn around if you feel unsafe, listen to your gut.
I carry a cell phone, but it doesn't work in most areas.

Enjoy the ride!... I did almost hit a deer the other day and a huge golden eagle was circling, sizing me up on a slow uphill slog.