How to Upgrade hub motor in fatbike ?

[scottyfatbike]

Hi guys. Thanks for letting me join. Iv a fat tyre eff ebike 350w motor. Wanting to up grade to 500w or 750w for more power up hills. What will I need? Thanks

 

[scottyfatbike]

Isn't the effbike a hub motor rather than a Brose motor ? Or do they do different ones ?

Yes hub motor in rear wheel. Thanks for replying