The built in rear rack on the Higgs Step-Through was designed to attach surf racks, baskets, panniers, and almost anything else you can think of. Murf also included multiple threaded holes on the rack that can be used for future Murf accessories or maybe something you come up with on your own. 

If we could only give one piece of electric bike buying advice, it would be to buy a bike with a 52 volt battery. Higher voltage batteries are able to deliver the same amount of power while using less current. This equates to less heat being generated within the system, increased efficiency, and a longer lifespan. Murf uses high quality, name brand, lithium-ion cells in all of their e-bikes.