KV: 4500KV/5200KV/6000KV (option), Diameter: 14.2MM, Item name: RS1108 brushless motor, No.of cells: 2S, Weight: 8.2g(W/O Silicone Wire), Propeller: 2″-3″, Framework: 9N12P, Shaft diameter: 1.5mm, Length: 20.5MM, Max.thrust: 266g(on 2S).
Check coupons or create price alert down below. 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($10.79): BGHONEY2110
2. ($10.99): 13f142
3. ($11.03): Parts8
this code has to be applied in your cart 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): RS1108, 502C6B, E1108, TTxBG10, BGss9%rc, BGRS1108, BGRSPro, BG50RS, AFfbG10, BG12MRP, BG1108M, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for EMAX RS1108 4500KV 5200KV 6000KV 2S RC Motor. The lowest price was: $5.99.
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)).