There are many good mountain bike brands. Giant and Trek are among the best. Other known brands include Specialized, Cannondale, Santa Cruz, Konam, Scott, Yeti, Cube, Merida, Rocky Mountain, KTM, Marin, Fuji, Raleigh, etc. Other mountain bike brands include small brands that make custom bikes. Titanium mountain bike brands can also come with specialized frames that only use this material. But bike brands are now seen across the world at various retailers.