Aliexpress
Click here… to search for FIIDO D1 Electric Bike 7.8Ah Black on Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – FIIDO D1 Electric Bike 7.8Ah White (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (429.99 USD): BGFDD1CN
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 820c20, PICODICOM, 686e69, BGFDD1CN19, bGpAnDacHeCk, 7bcdf9
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – FIIDO D1 Electric Bike 7.8Ah White (-3 USD)
Price history and price alert
Price history (for all/most countries) for FIIDO D1 Electric Bike 7.8Ah Black is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).