full carbon fiber finished mountain bikes good quality ,Super light and stiffness 9.8kgs only!!! Carbon fiber mountain bike Super Light ---- 9.8kgs only!!!3 sizes available: 16", 18", 20"Made of Toray T700 high modulus carbon fiberMonocoque construction, ergonomics designDesigned to provide superior stiffnessInternal derailleur cable routing.Head tube: tapered, 1-1/8", 1-1/2"Frame: 1050g, super ...