5"-6" ish lighter AM bikes are the absolute jam in moab for almost any trail, to really ride moab properly you need a bike that can climb reasonably well. Porcy could beat you up if you are out of shape and go nuts trying to mob down the thing but just have fun with it. I first did it waaay back in college and was beat as hell after the ride. Now I'm usually on that trail once a year and we do an evening ride after we get done with it...(better shape). Absolutely get dropped off at LPS that is arguably one of the better parts of the trail but there are some exposures up there, they are hidden by trees most of the time though. Whoever cleans the notch gets free beer the rest of the trip.