The Hutchinson Atom Galactik is the first sub-250 gram road tubeless tire. When we put one on the gram scale it lived up to expectations coming in at 249 grams. 249 grams means it is lighter than virtually every tubular or clincher tire/tube combo. In Hutchinson's testing it came in more efficient as their pro tour tubular which is a mega buck tubular.
The Atom Galactik features a new natural rubber compound making it adhere quite a bit better in hard cornering. This makes it the tubeless tire choice in pro racing. It does not require sealant, but you might want to use a little because one of the selling points of using tubeless road tires is their ability so seal small punctures.
Tubeless tires allow for better handling and give excellent road feel. The magic occurs because there is no friction between the tube and tire, because all you have is a tire. Cornering, descending and rolling are all greatly enhanced. You will never get a pinch flat.
The square carbon fiber bead profile on the Galactik tubeless matches tubeless specific rims for the important lock-tight fit required for reliable performance on a tubeless system. Hutchinson is an innovator in tubeless technology and has lead the way with tubeless in the mountain arena and now are setting the standard in road tire innovation.