https://www.leafbike.com/
https://www.leafmotor.com/

* This 20 inch fat bike kit combines the full E-bike technology: direct drive Brushless Gearless high torque hub Motor to change almost every bicycle into a personal electric bike. Save energy, protect environment and save money with a lot of fun.

* Saving 10% of electricity, Improve the efficiency of 8% With The Newest Materials Steel Rotor.
 
Main Features:
. Rim: 20 × 3 inch double wall Alloy Rim Fit For: 20 × 4.00" tire
. Spoke: 12 gauge / 72mm Length × 36 pcs

. Engine: Bldc hub motor
. Voltage: 60V
. Power: 2500W
. Efficiency: 90.5%
. Max speed: 43 mph Default Optional other speed: 30mph,25mph...
. Mechanical brake: Disk or  V
. Cable location: shaft end, Right
. Cable length:100cm / 40" 
. Front frame fork / Install: spacing of 135mm
. Noise: 60 db
. Surface: Black painted

. Driver: brushless controller
. MOSFET: 18 PCS
. With LCD: YES
. Rated Voltage: DC 60 Volts
. Min. Voltage: DC 52.5 V
. Rated power: 2500 Watts
. Casing material: aluminium
. Maximum Current: 45 A ± 1 Amps
. Thermal: aluminum shell and the substrate
. 3 phase 120° brushless motor
. Operating Conditions: -20~45 °C
. Waterproof design
. Size: 155 mm L × 72 mm W × 38 mm H

LCD, More Function:
* Cruise
* Forward & Backward Optional
* Kmh & mph Optional
* Max speed 0 ~ 100 kmh / 60 mph
* Speeds 0 - 5 - "0" is off. "1" is the slowest. "5" is the fastest.
* Battery gauge
* ...

Package Content:
1 x 20 inch 60V 2500W front hub motor wheel - Rim Fit For: 20 * 4.00 fat tire / snow / beach
1 x 60V 18-MOSFET motor controller
1 x LCD  display speed, mileage, battery gauge..
1 x Twist throttle -- Cable length: 1500mm
1 x Brake levers -- Cable length: 1500mm
1 x Three button switches control cruise, reverse .. -- Cable length: 1500mm
1 x Pedal assist -- Cable length: 900mm

Net Weight: 11.2 kg 
Package Size: 50cm L x 50cm W x 25cm H
Package Type: Cardboard Box