Bestbuy offers GoTrax - Z4 LITE Folding eBike w/ 25 mile Max Operating Range and 20 MPH Max Speed - White for $599.99 (orig. $899.99) with free shipping.

Product Description:
The Z4 LITE’s Light weight, great quality, and folding frame make it a convenient form of travel. Designed to allow riders of all types to try their first e-bike while maintaining an ultra-affordable price point. The Z4 LITE is a great go anywhere bike that is easy to transport and store due to its triple folding frame design. No need for a bike rack, this bike folds compact enough to fit in a car trunk or back seat. The Digital display offers quick readouts on speed, battery life, pedal assist, headlight control, and mileage. This Class II e-bike design has pedal assist up to 20 mph or just use the throttle control up to 20 mph for as long as 40 miles per charge. The 20” x 2.6” tires offer a confident and comfortable ride on all terrains. The adjustable handle bar stems and seat post allows this bike to be sized comfortably for all adults. The front and rear disc brakes, headlights and brake lights, and an included bike lane bell complete this feature packed full value e-bike. 

• Digital display
  Quick readouts on speed, battery life, pedal assist, headlight control, and more.
• Folding frame
  The easy folding frame makes your e-bike totally portable without the use of a bike rack. You can now fit your e-bike in your car, in a closet, or even under your desk.
• Pedal assist & throttle
  The lower levels of pedal assist make the Z4 LITE a great way to workout, while the higher levels conquer hills with ease. Chose between using the throttle or 5 different speed settings of pedal assist ranging from 7-20 MPH.
• 20" fat tires
  Built with 20" x 2.6" wide tires to asorb the shock of bumpy roads and multiple terrains. The Z4 LITE is built to be a tough entry level e-bike for all types of riders.
• Dual Braking
  Just like you are used to with a standard bike, this e-bike features dual braking to keep you safe and in control of your ride.
• UL2849 compliant
  Tested and Certified to UL2849 Safety Standard by UL Solutions