The e-RAD 750 watt mid drive conversion kit is the most powerful but still legal mid-drive electric bike kit I’ve tested, can be unlocked for increased speed if you intend to ride off-road or on private property ~40 mph top speed. Erad is located in Tempe Arizona. Perfect for cargo style ebikes, fat ebikes and other heavy duty applications, pairs with cassettes, internally geared hubs and CVT systems and offers shift sensing modules specific to each application. Runs at 48 volts and is available with two battery size choices, packs are available in downtube or rear rack styles and come with high quality Lithium 18650 cells. The display works well enough (and is backlit) but is not removable and won’t swivel, as with most kits the wires require some zip-tie work to clean up and add a bit of mess to the frame. EBR was paid to perform this review #Sponsored We try to be honest, thorough, and fun! Comparison tools, shop directory, and forums at: ElectricBikeReview.com .