Frame breather pipe and frame thereof

The utility model relates to the technical field of motorcycles, and discloses a frame breather pipe and a frame thereof, the frame breather pipe comprises a first semi-circular pipe and a second semi-circular pipe which are formed by punching, the first semi-circular pipe is provided with a first connector extending along the axis, and the second semi-circular pipe is provided with a second connector extending along the axis. The first connector and the second connector are connected to form a ventilation bent pipe, and a ventilation bent pipeline is formed on the inner wall of the ventilation bent pipe. According to the bicycle frame breather pipe and the bicycle frame, the bending radius of the bent pipe is reduced, meanwhile, wrinkling or sinking caused by forming machining is avoided, and the arrangement space of the bent pipe on the bicycle frame is reduced. 本实用新型涉及摩托车的技术领域，公开了一种车架通气管及其车架，包括冲压成型的第一半圆管和第二半圆管，第一半圆管设有沿轴线延伸的第一连接口，第二半圆管设有沿轴线延伸的第二连接口，第一连接口与第二连接口连接形成通气弯管，通气弯管的内壁形成有通气弯管道。本实用新型的车架通气管及其车架，减小弯管折弯半