Controller upgrade

Hi all.

I have a 48-52v 1500w conversion kit from LeafBike (https://www.leafbike.com/products/diy-bike-conversion-kit/700c-48v-52v-1500w-rear-wheel-electric-hub-motor-kit-989.html)

This is on my Specialized Sirrus 2.0 Hybrid Bike (https://www.specialized.com/gb/en/sirrus-2-0/p/174691?&searchText=90920-8000)

Was wondering if I was to Upgrade my LeafBike Controller to say 72v, which one would be capable with the kit I already have please?

So people have been talking about their problems with the stock 40-45 amp controllers coming with a 1500w hub. I suggest looking for something bigger. Is 80a and 24mos big enough? My 1500w got stolen before I could blow it up, didn't get to conduct that experiement. You're going to have to find out.

https://www.aliexpress.com/item/4001047029643.htm

Phase runner? My dream controller....LOL

I wouldn't want more power on a hard tail and I wouldn't even want to run the power you are running without a front suspension fork.