This DYU C3 folding electric bike drops to $165 at AliExpress with the promo code “VSUSAFF23”. That puts it at $94 cheaper than Amazon’s best price. The bike is UL2849 certified, a safety standard for e-bike battery systems, and comes backed by a 1-year warranty. Its 500W peak motor and 280Wh battery support a top speed of 20 mph. You’ll also get free shipping. The coupon ends July 19. Buy Now at AliExpress