The wrongs with it could be that you will be stuck with old tech - PF are old cells and because of this very cheap.
And main thing is you never know how the frock they build it. Never buy a pack unless you know they are good builders!
95 of builders out there dont know how to build correctly this means a potential explosion, fire and/or high voltage sag and uneven load on the cells due to improper building technique <- this also leads to faster degrading of the pack.
These bafoons above claim 24Ah, its a 8p pack so really 23.2Ah and actually 21.6Ah useful energy before BMS cuts off(but we never really talk about this)
Then they claim 5C(24*5=120A) discharge and at 8p maximum they can take is 80A and thats like 12Volt of sag IF they manage to build it right. Also the bike will be slower due to a different chemistry, you really want to go with a 75V pack to maintain the same top speed.
Refer to my thread of China packs:
https://endless-sphere.com/forums/viewt ... 14&t=84412
I can really recommend Paul a forum member in here and is a pro, he knows how to build a packs - https://em3ev.com/
We also have a few more here on the forum who can build proper packs, like Madin88.
We will not see a "new tech" any time soon, so buy something that you can be safe with for 5 years or so.
One thing you dont want to save money on is the battery.