I didn't think this was worthy of a new thread, but maybe it will get some bemused glances here.
I found about about these by clicking an ad for chainless bikes. I must admit it peaked my interest.
http://www.dynamicbicycles.com/commu...FSmkhgodH1vvkQ
I'm hazarding a guess that you can't build up very high speeds with that "Dynamic street shaft drive."
Nevertheless, has anyone actually ridden one of these? I'm honestly curious.
EDIT: And I got a flat today and realized too late I'd brough an extra tube for a different bike. Silly me. So my commute was irritating.