Our mountain carbon fiber bicycle frames have various styles such as hardtail carbon fiber mountain bike frames, suspension softtail carbon fiber mountain bike frames, and electric assist softtail carbon fiber mountain bike frames. The frame sizes include 24ER, 26ER, 27.5ER, and 29ER; the suitable outer tire sizes are 27.5ER*2.6", 29ER*2.35", and 29ER*2.6", providing unparalleled performance and selection advantages. They are made of high-quality Toray T700 and T800 carbon fibers, which are extremely lightweight and can achieve easy riding and excellent speed. The firm and hard frame ensures precise handling and provides stable and safe riding on various terrains. Its durability enables it to withstand harsh conditions. The customizable design meets the personalized needs of every rider. Not only that, the frame has a stylish and smooth appearance that attracts everyone's attention. Experience the ultimate riding pleasure with our mountain carbon fiber bicycle frames.