I use to like to hunt and fish... Wife didn't like it, so I would go without her. I got tired of being without her, so I started looking to find a hobby we could both enjoy... I remembered we used to ride bikes together when we were in high-school, nothing serious; just a way to get away from everything so we could be alone. So; cycling seemed like a good idea. I bought a bike; bought her a bike, and she likes it. Sometimes it takes a little coercing to get her to ride, but once the endorphins kick in she turns into a road warrior!
My advice to you BBW, is I think your not trying hard enough to get her to go ride with you. Bribe her, cook her breakfast, whatever it takes, get her ass in the saddle! You'll be glad you did! ( my 2 cents )