Mark, the 16.5's are supposed to be a "same height" swap for a 15" tube type, like a big rig 20" and a 22.5., or a 22 and a 24.5, etc. The only real advantage to a tapered bead tubeless tire is it's easier to do a roadside tire change than the corresponding height tube type. Now, getting it inflated- - - - -that's another kettle of fish! We're not supposed to mention acetylene or starting fluid, right?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!