Material Nylon tire& alloy rim& stainless steel spoke, Quantity 1 Set × Motor Conversion Kit, Type Rear Wheel / Front Wheel, Wheel Type Front/rear wheel (includes tire), Motor Type Brushless, Color Silver black pattern, Style Standard, Gross Weight 11.20kg/12.12kg, The Highest Speed 55km/h, Wheel Dimension 26”x1.75”, Size 26 (inches), Motor Power 1000 W/48V, Product Name Motor Conversion Kit, Number of People Loaded single.
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.
Updated:
Banggood
Warehouse in Europe 
.
Link: LCD 48V 1000W 26inch Electric Bicycle Motor Conversion Kit [EU]
$294.39 with coupon: 8Couponsde
$294.39 with coupon: MVC8SPRING
$297.59 with coupon: 2203ActiesNL
$300.79 with coupon: BG00c906
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Not enough data to show price history chart… $139.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
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)).