What Gavin says makes a lot of sense. I do believe that Brammo want to compete head-to-head against the current crop of IC bikes and come out looking like a good alternative, at least as far as performance is concerned - especially in the quarter-mile. I also agree that the market in the U.S. is very limited - unless the Israelis bomb Iran and Iran blocks the Persian Gulf. Then any EV on the market will sell like hotcakes until the crisis is over.
Right now, I am just not seeing the major motorcycle manufacturers coming into the game any time soon. I figure that they just don't see enough sales to justify jumping into the EV business. Even BMW is kind of goofing around with their new e-scooter, with no date set for production to my knowledge. In any case, based upon BMW's previous actions when they introduce a new model, the e-scooter will be sold in Europe for a couple of years before it becomes available in the U.S. - if it ever does.
We might see the KTM dirt/enduro models here soon, but KTM is willing to take risks that the Japanese and other manufacturers are not.