Greetings all, I'm barand new to the e-bike world and am kinda stumbling through my first build. I acquired a voilamart 1500 48volt rear wheel kit recently, it went on my Cannondale MTB nicely but still waiting on the battery. My first question is, being the kit came with a grip throttle that just has a small display and a red button on it how do I adjust the settings like PA, wheel size and the other things you can do with some display controllers? I also acquired a salvaged 36volt Espin battery, is it of any use on my build? Also what other suggestions do you have for me going forward with this build? Thank you in advance!