Motorcycles have been using car tires since they were invented. Go to any motorcycle museum and take a look at the tires on those old bikes. The tread is flat. I grant you they are narrow by today's standards but none the less, flat. I have driven many many many miles with car tires on three different bikes. I truly ride in all conditions and on all types of roads. I have driven the "Tail of the Dragon" with a car tire, riding two up, pulling a trailer at night in a very heavy rain without problem. A car tire has a bigger contact patch than a motorcycle tire does going straight as well as in a curve as shown in this graphic.
Getting used to the car tire will be way way easier than learning to ride a motorcycle in the first place. The only drawback I have noticed is mentioned in Fortnine's youtube video is when you come to a stop on a banked road. The bike will want to get parallel with the banking especially if you have too much air in it. Simply lower the pressure in your tire by a pound or two. Since I lean the bike to the side that I put my foot down anyway, this is not a problem. Your passengers movements will be more pronounce. I have even totaled one of my bikes and the insurance company paid without question.
I have read many a forums addressing this subject and they are usually filled with nay sayers that have never put a car tire on their bikes but seem to have all the answers. If you want to try it, then do. If you don't want to try it, then don't. If you haven't tried it then you do not have the knowledge to answer posts by those who are curious.
Getting used to the car tire will be way way easier than learning to ride a motorcycle in the first place. The only drawback I have noticed is mentioned in Fortnine's youtube video is when you come to a stop on a banked road. The bike will want to get parallel with the banking especially if you have too much air in it. Simply lower the pressure in your tire by a pound or two. Since I lean the bike to the side that I put my foot down anyway, this is not a problem. Your passengers movements will be more pronounce. I have even totaled one of my bikes and the insurance company paid without question.
I have read many a forums addressing this subject and they are usually filled with nay sayers that have never put a car tire on their bikes but seem to have all the answers. If you want to try it, then do. If you don't want to try it, then don't. If you haven't tried it then you do not have the knowledge to answer posts by those who are curious.