When I was updating this page, then coupon price was 519.99 USD for 750W Mid-Motor Conversion Kit (in Banggood). This is EU warehouse. Basically copy coupon, view price history or create e-mail price alert. What is best price?
Latest coupon and price update (UTC):
Banggood (519.99 USD)
Banggood warehouse is located in Europe 
. Is it cheap? I’m not sure about the price, coz I have only 1 record(s) in my database. There is one coupon right now! Check this out.
Link: Banggood product page
Price without coupon: 529.99 USD
Coupon (519.99 USD): BG33f6bb
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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): BGSPRING8OFF
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
Click here… to search for BAFANG BBS02B 48V 750W Mid-Motor Conversion Kit Electric Bike [EU] on Aliexpress
Here are coupons that you can use.
Price history and price alert
There is only one database record (it was for 519.99 USD), so you can’t see price history chart.
You can set price alert (for Banggood).