I honestly thought that your 1st line was going to end with: "If she doesn't go for it, I may have to think about getting a slightly more bike friendly girlfriend.":lol: To be honest, don't force it. Suggest a short ride to lunch on a Sat. afternoon or so. If she wants to go, cool. If not, no sweat. Force the issue, and it will put her off almost permanently. If it's one thing that I've learned (quit reading ladies) is that SOME women (covering my azz for the ladies who kept reading anyway) like to feel like something is THEIR idea. Just let it happen. I don't think that I'd look into trading my bike though. Especially if she only rides 5mi. with you anyway. Sounds like the squid/wheelie/flying off the back is a trust issue. Take her on a few smooth and easy rides to slowly build her confidence/trust in you and the bike. Hopefully that helps.