There are many variations on this topic; a lot of frames have no gusset but do have struts among the downtube as well as neck stem, one example is. The motor is bolted to these mounting plates (There exists a typical https://lucyyazn813378.activoblog.com/28730683/how-much-you-need-to-expect-you-ll-pay-for-a-good-how-to-build-a-mini-chopper