Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (12.73 USD): BGJUNEGSG9
Coupon (12.87 USD): BGGAL8
Coupon (12.87 USD): BGJON8
Coupon (12.87 USD): BGRCParts8
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): BGGEPPart, AFfbG10, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, BGRC902, BgoFErTaSchInA10, Parts8, BgcLuBofErtA10, 13f142, BGCuponation10, BGDAVIS, BGHONEY2110, BGRACING1125, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGToys1
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for RCINPOWER GTS V2 1207 RC Motor? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).