After about 8 years of being away from my wife every Sunday on my bike, it occurred to me that we needed a tandem. I was spending too much quality time away from my wife, bad idea. So we bought a used CoMotion. We've put many thousands of miles on it over the past 20 years. That was certainly the best idea I ever had. We've never been tighter. We're still at it, getting in our Sunday group ride and a couple mid-week rides so we can participate on Sundays. We think that regular gym sessions have been a big help