Top speeds achievable on bbs02 48v?

Not a pro at the mechanical/electrical aspects of e-bikes, but I just ordered a bafang bbs02 48v conversation kit (44t) with a 48v 20ah battery (+edk01 display) for my carrera vengeance (27.5” wheels). Anyone know what top speeds I can reach, and which settings I’d need to adjust to achieve em?

And if anyone has a similar setup, what ranges do you get out of the battery at what speeds?