!!!This kit comes with cutting edge 45A Sabvoton sine-wave dual mode controller. We are the exclusive carrier of this controller!!!

Professional ebike shops to install your ebike kits in FL, NY, TX, contact for more information

High Performance, Eco Friendly 48v, 1500W 20"x4.0" 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 30 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 1500W super powerful brushless gearless hub motor 
* Cutting edge all-in-one LCD display (add $40 for color display option, contact for more information)
* Crank speed sensor for pedal assist 
* Low power consumption controller 
* Dual brake for safety 

1500W Front Wheel Electric Bike DIY Conversion Kits Included:
1. 20"x4.0" 1500W Fat Tire Powerful Brushless Gearless Front Wheel Motor
2. Premium 48V Sabvoton Sine-wave 45A dual mode Controller
3. Premium sw900 LCD display. Contact seller if you want color LCD
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. Premium tire included
8. Fits 135mm 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