The innovative use of the rear fuel tank as the main structural element of the subframe, keeps weight low and eliminates design complexity.. SUBFRAME2021-03-102021-03-10https://spinnin-wheel.com/wp-content/uploads/2019/08/logo_spinnin3.jpgSpinnin-Wheel AShttps://spinnin-wheel.com/wp-content/uploads/2021/03/pho_bike_det_690-endr-2019-subframe_sall_aepi_v1.jpg200px200px