Endless Sphere

the upgrade kit I want is www.electroncycles.co.uk/product/48-52v-bbs02-foc-controller-upgrade-asi-bac855-2200w-display-cover-loom/ I'd love to know if anyone has tried it, is it really as "plug n play" as it seems? Is it for the bbs02a or bbs02b? It seems for the bbs02b based on the inclu...