Lefty MTB wheels are front with Lefty 1.0/2.0... wheel, rear with Novatec/Powerway/koozer...wheel, and it suit to mountain bicycles, which are specially designed for cross-country (hills, trails, wilderness and gravel roads, etc), and can be used in mountain bike race. “GO-ZONE” focus on the stiffness of the carbon MTB wheels. For the surface, there are 3k/UD/12K/3K twill/12k twill… matte or glossy.