Small and light frame for 2.5-inch propellers and a 20x20mm FC / ESC stack. With modern micro-cameras and powerful motors such as the iFlight Tachyon T1108 5000KV (and other 11XX, 14XX), this is a full-fledged and highly efficient racing category for safer flying in confined space. The frame is made of high-grade 3K carbon, and the iFLight quality of the work is at a very solid level even with a favorable price.