28 inch 48V 52V 1000W rear wheel electric hub motor kit

* This 28 inch electric bike conversion 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: 28 inch double wall Alloy Rim Fit For: 28 × 1 5/8" tire . Spoke: 12 gauge / 184mm Length × 36 pcs . Default: Black spokes . Optional: Silver spokes -- Please leave message. . Engine: Bldc hub motor . Voltage: 48V / 52V  . Power: 1000W . Efficiency: 90.5% . Max speed: 87.6 kmh -- 54.6 mph Default Optional other speed: 35mph or 25mph,15mph...please leave message . Mechanical brake: Disk or  V . Sprocket: freewheel or Cassette . Cable location: shaft end, Left . Cable length:100cm / 40" . Install: spacing of 135mm fork . Noise: 60 db . Surface: Black painted . Driver: brushless controller . MOSFET: 12 PCS . With LCD: YES . Rated Voltage: DC 48 / 52 Volts . Min. Voltage: DC 40 ± 0.5 V . Rated power: 1000 Watts . Casing material: aluminium . Maximum Current: 26 A ± 1 Amps . Thermal: aluminum shell and the substrate . 3 phase 120° brushless motor . Operating Conditions: -20~45 °C . Waterproof design . Size: 105 mm L × 72 mm W × 38 mm H LCD-830, More Function: * Cruise - Yes * Forward & Backward Optional * Kmh & mph Optional * Speeds 0 - 5 - "0" is off throttle. "1" is the slowest ~ "5" is the...