Base casing: Al 7075, Weight: 4g, Item Name: 1103 8000KV 11000KV 1-2S Brushless Motor, KV: 8000KV / 11000KV (Optional), Stator: 0.2mm silicon steel, Bell cap: Al7075, Bearings: Japanese NSK 4X1.5X2, No.of Cells(Lipo): 1-2S, Rotor: N52H arc magnets, Wire AWG: 30AWG, Configuration: 9N12P, Model: Returner R3 1103.
Basically copy coupon, view price history or create e-mail price alert. What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. 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
1. ($11.44): BGAFF10OFF
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): bGhOnEy10, BGdragonBoat, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for BrotherHobby Returner R3 1103 1-2S RC Motor is here. The lowest price was: $10.79.
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)).