High Performance, Eco Friendly 48v, 1000W E-bike Conversion Kit. This E Bike Conversion Kit includes everything you need (except battery) to convert your mechanical bike into a 3 mode electric bike. Cruising at 25 mph or climbing the steepest hills is no sweat. This kit allows you to toggle between 3 modes with just one thumb press: 1. Pure mechanical 2. Power assisted 3. All electrical 

* Built with the highest international standards, CE, EN15194 * 48V 1000W super powerful brushless gearless hub motor 

* Cutting edge all-in-one LCD display 

* Crank speed sensor for pedal assist 

* Low power consumption controller 

* Dual brake for safety 

1000W Front Wheel Electric Bike DIY Conversion Kits Included:
1. 24" 1000W Powerful Brushless Gearless Front Wheel Motor
2. Premium 48V 30A Controller
3. Premium sw900 LCD display.
4. 1 pair of Top Quality Black Aluminum Alloy Brake Levers
5. Twist Control ( or Thumb Control or Half Twist Control if requested)
6. PAS 8 Magnets High Quality Pedal Assistant Sensor

7. Fits 100mm fork dropout

A quick lookup of bicycle wheel size name and rim diameter/ /ETRTO is below: 

Wheel Size            Rim Diameter / ETRTO 

28" 29er 700C       622mm

27" / 27.5"             584mm

26" / 650C             559mm

24"                         507mm

20"                        406mm

One year manufacturer warranty