Oh good, cylindrical cells. The battery cell of choice for motorcycles who can't afford to put quality pouch cells in their bikes.
For a mere .... $78,000.
edit- let's have a some funsies with the information they DID release. They are claiming a 399 volt system. Doesn't say max or nominal, but in order to give them the benefit of the doubt I'm going to use that as a max voltage figure. Cylinder cells are pictured. Could be 18650s but I'm going to give them the benefit of the doubt and say 21700s. To further give them the best possible fighting chance I'm going to use Samsung 50G cells as my model which are 5Ah cells.
They would need 95 cells in series to get 399vdc (399 / 4.2 = 95)
This would mean nominal voltage of 346.75, and with a 5Ah cell that means each pack in series is 1.7kWh
This image is from their page, showing a battery rendering. It looks conceivably like each segment there could be 95 cells, and everything beyond that is a parallel pack. The 3 shown would be ~5.2kWh. How many fit into the giant phallic housing? No idea. But I'm gonna say maybe twice that, giving it a 10.4kWh pack or thereabouts. Speculating is fun with concept bikes.