That was going to be the first thing I asked about. Second thing I was gonna ask, The rims have spokes, I think there are tubes... but the service manuel doesn't mention tubes, and the tires on it say 'tubeless'. I know you can put tubeless tires on tubed rims with tubes in them. ( I've done that before) I guess I just want to know for sure that there are tubes on the bike and what size to order. I don't want to make this a 'favorite tire' post.