Hi, All. I bought a Terratrike Rover nearly two years ago, but for a variety of reasons, couldn't ride it till now. Got it properly adjusted earlier this week, and I went for a ride this afternoon. Very much fun! When I was just coming up my road toward home, however, my chain came off. I put it back on the gears, but it promptly came off again as soon as I started pedaling again. So, can I tighten the chain just like on a bike, by loosing the bolts for the rear wheel, pulling back on the wheel, and tightening the bolts? I believe my Rover is an internal drive train (no derailleur). Any help would be appreciated!