I am monitoring price for FMS 50mm 11 Blades Ducted Fan EDF RC Motor and it is for $37.94 now (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
Latest coupon and price update (UTC):
Brand Name: FMS, Usage: Suitable for RC Airplane, Motor: 2627 KV4500(4S)/ KV5400(3S) (Optional), Weight: 75g, Item Name: 50mm 11 blades Ducted Fan
Banggood ($37.94)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? Low/high price? My database says that it’s pretty good price, coz average is $38.26.
Link: Banggood product page
Price: $37.94
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): Parts8, BGRCParts8, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, 8wEbgaInS5, BG8RCToy, hoNEYbGdeAlS, BGJUNEGSG9, BGRCT10, BG8ReviTrage, Cuponation9, BGToys8, BG8OFFCOUPON, BGMatt2022, BG8FORMULAMX
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for FMS 50mm 11 Blades Ducted Fan EDF RC Motor is here.
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)).