Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Battery Capacity 36V 6.6Ah, Mode Cycling/Electric/Power, Folding Size 630mm × 500mm, Color Black, Mileage ∞/30km/50km, Wheel Size 12 Inches, Weight 15kg(Battery Included), Battery Life For Cruising 30 – 50 km, Brake System Front/Rear Disc Brake, Size 1230mm × 930mm, Model F12
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($557.99): PICODICOM
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): f58823, AFfbG10, BGBFAFF2019
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for CMSBIKE F12 36V 6.6AH 250W Electric Bicycle.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).