DIY 1000W 45km h Electric Bike Using Cheap Conversion Kit

We strive to keep all our customers satisfy. 48v 250w e-bike rear drive flywheel motor kit(fits 28/29in/700c spokes)? hgf included accessories bicycle lithium modification kit contains 48v 250w rear drive fly motor, 15a controller, s900 lcd meter, 130x shifter, 8c assist sensor, a pair of power off brake handle, motor extension wire, spoke, spoke nut, installation tools, and manual.