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Click here… to search for Samebike XW-20LY 350W 10Ah Electric Bike on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (854.99 USD): BG10OFFAFF1
(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): BG13dadf, PICODICOM, fcd1e7, BGSB20LYCN, Wholesale20, bGpAnDacHeCk, 7bcdf9, BG7PSB20LYCN, BGBSSB20LYCN, BGEBSC15, BGwhielabel
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for Samebike XW-20LY 350W 10Ah Electric Bike.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).