Disclosed is a motorcycle frame. The motorcycle frame comprises a main frame and an engine support arranged on the main frame. The main frame comprises a motorcycle head tube, a main supporting tube, a left tail tube, a right tail tube, a left inclined strut tube and a right inclined strut tube, wherein the motorcycle head tube is inclined towards the front lower position; the front end of the main supporting tube is connected with the lower portion of the motorcycle head tube, and the rear end of the main supporting tube is inclined downwards; the left tail tube and the right tail tube are symmetrically arranged on the two sides of the main supporting tube, the front end of the left tail tube and the front end of the right tail tube are connected with the middle portion of the main supporting tube, and the rear end of the left tail tube and the rear end of the right tail tube are inclined upwards; the front end of the left inclined strut tube and the front end of the right inclined strut tube are connected with the rear end of the main supporting tube, and the rear end of the left inclined strut tube and the rear end of the right inclined strut tube are inclined upwards, and are connected with the middle rear portion of the left tail tube and the middle rear portion of the right tail tube respectively; a triangular reinforcing plate is connected between the motorcycle head tube and the main supporting tube, and located above the main supporting tube. The main frame is in a closed triangular frame shape, and is high in overall strength and rigidity; triangular stable supporting is formed between the motorcycle head tube and the main supporting tube through the triangular reinforcing plate, and the stress deformation of the motorcycle head tube can be effectively prevented.
Motorcycle frame
2015-04-08
Patent
Electronic Resource
English
IPC: | B62K Fahrräder , CYCLES |